Topline: The preliminary hearing for Tyler McCain has revealed a chilling timeline built on forensic evidence, key witness testimony, and a case without a body.
Published: September 18, 2025 7:00 am ET
Must Read
Tyler McCain, left, and Nikki McCain (via SCSO / Family handout)
REDDING, CA — A California courtroom has spent the past week unraveling a web of testimony and forensic evidence in the case against Tyler McCain, who is accused of murdering his wife, Nikki Cheng Saelee McCain.
The 39-year-old woman disappeared in May 2024, and though her body has not been found, prosecutors say the circumstantial and forensic evidence paints a damning picture. The ongoing preliminary hearing will determine whether McCain, who has pleaded not guilty, will face trial for her presumed murder.
According to the Record Searchlight, more than 17 witnesses have taken the stand over the first four days of the hearing, with testimony continuing into a fifth day on Tuesday. Shasta County Superior Court Judge Thomas L. Bender is presiding over the proceedings and will decide whether there’s enough evidence to move forward to trial.
McCain, dressed in a blue sweatshirt labeled “Shasta County Jail,” has remained mostly quiet during the hearing. As reported by the Record Searchlight, he has been observed sitting next to his attorney, often resting his head in his hands or leaning forward on the desk, a yellow legal pad in front of him.
Testimony began with those who lived on or near the McCain family’s Olinda Road property in Happy Valley. Felicia Nelson, a former neighbor who lived in a trailer behind the McCain residence, told the court she occasionally saw Nikki but they “were not close at all,” according to the Record Searchlight.
Nelson recalled that Nikki once asked her to install purple hair extensions. More notably, she described the McCains’ relationship as plagued by jealousy.
“He just gets really jealous,” Nelson testified. “They were just a jealous couple,” she said of Tyler and Nikki McCain.
Forensic evidence has played a central role in the hearing. As Record Searchlight reported, Courtney Leadingham, an investigative technician with the Shasta County Sheriff’s Office, explained how investigators used a chemical reagent that glows purple when it reacts with hemoglobin in blood. Leadingham showed photographs of the McCains’ garage floor and Nikki’s Chevy Avalanche truck bed taken before and after treatment with the reagent. Portions of both the garage and the truck bed glowed, prompting audible gasps from observers in the courtroom.
Nikki’s Chevrolet Avalanche was discovered off Highway 36 on May 25, 2024—just days after her family reported her missing—according to NBC News. Investigators processed the vehicle and found what they described as evidence of foul play.
Two witnesses who testified under immunity added more pieces to the puzzle.
According to the Record Searchlight, Michael Ripley and his nephew Justin Karren—both relatives of the McCains by marriage—recalled events in May 2024 that now carry deeper significance. Ripley testified that Karren showed up at his house in Happy Valley asking for help picking up Tyler McCain near Bowman Road, close to where Nikki’s truck was later found. Ripley said McCain had him pull over near a bridge, where they saw the Avalanche.
Tyler reportedly tried to start the truck but couldn’t. When asked if he knew Nikki was missing, Ripley replied, “I was told this happens quite frequently with her.”
Karren, who lived in a trailer behind the McCains’ home, denied any involvement in Nikki’s disappearance. Asked by Deputy District Attorney Toby Powell whether he had anything to do with her vanishing, Karren answered “no.” When asked if he killed Nikki, he again said “no,” as reported by the Record Searchlight.
Tuesday’s proceedings turned more personal.
According to KRCR-TV, Luis Barajas—who said he had a romantic relationship with Nikki in the final days of her life—testified that she had visited his home on May 17, 2024, and that the two exchanged texts and calls into the early hours of May 18. The conversation became heated, and then suddenly stopped.
“She would always text back,” Barajas said. “But that morning, she didn’t.” When asked directly by the prosecution if he had killed Nikki, Barajas responded, “I did not.”
Also on Tuesday, Department of Justice senior criminalist Carolyn Heitsman gave expert testimony on DNA evidence recovered from Nikki’s truck.
According to KRCR-TV, a blood-stained sheet with knotted corners was discovered in the truck bed. Heitsman told the court that based on kinship analysis using DNA from Nikki and Tyler’s daughter, the blood was 120 billion times more likely to belong to Nikki than to anyone else. Additional fluids on the sheet showed what Heitsman described as “very strong support for inclusion” of Tyler McCain’s DNA as well.
Tyler’s mother, Jeanette McCain, also testified on Tuesday, though KRCR-TV reported that she had difficulty recalling many details and was unable to answer several questions.
Nikki McCain was reported missing by her sisters on May 22, 2024, after they hadn’t heard from her since the night of May 17, according to NBC News. Her disappearance came just weeks before she was scheduled to testify in court regarding four felony charges of domestic violence against her husband, Tyler. Those charges, stemming from a December 2023 incident, were dropped in July 2024 when Nikki failed to appear.
On August 20, 2025, following a months-long investigation, the Shasta County Sheriff’s Office arrested Tyler McCain.
As NBC News reported, Sheriff Michael L. Johnson announced the arrest during a press conference, stating: “Detectives recently obtained a murder arrest warrant for Tyler McCain… He was ultimately booked in the Shasta County Jail with no bail for the murder of Nikki.”
Detectives had earlier executed a search warrant at the McCain home and seized evidence they say pointed clearly to homicide. “Various items of evidentiary value were seized,” Sheriff Johnson said. The Sheriff’s Office has since classified the case as a homicide, citing the lack of contact with Nikki, the forensic findings, and the statements collected during interviews.
The search for Nikki’s body remains ongoing. As NBC News noted, law enforcement, volunteers, and family members have combed through waterways, drainage ditches, rural land, and remote properties in an effort to find her. “We’ve used search and rescue, volunteers, friends, family, advocates… trying to give us that next piece in this case,” Sheriff Johnson said.
At the same press conference, Nikki’s sister, Kaye Ford, said, “We are still fighting for justice to be fully served, for my sister’s memory to be honored and for the healing of our family and community.”
The preliminary hearing is expected to continue through Thursday, according to KRCR-TV. Judge Bender will then rule on whether the evidence presented is sufficient to send Tyler McCain to trial for the murder of his wife.
Presumption of Innocence: A presumption of innocence means that any defendant in a criminal trial is presumed to be innocent until they have been proven guilty beyond a reasonable doubt in a court of law. The defendant in this case is only accused of the charges set forth in the criminal complaint. They are innocent until proven guilty.
If you are experiencing domestic abuse, you are not alone. Help is available. Call the National Domestic Violence Hotline at 800-799-7233 or text "START" to 88788 to connect with trained advocates 24/7. Support is free, confidential, and available in over 200 languages. You can also visit thehotline.org for more information and resources.
Editor Picks
Latest Articles
DNA Evidence, Knotted Sheets, and No Body: What We’ve Learned in the Nikki McCain Murder Case So Far
The preliminary hearing for Tyler McCain has revealed a chilling timeline built on forensic evidence, key witness testimony, and a case without a body.
By Jacob Charles
Published: September 18, 2025 7:00 am ET
Tyler McCain, left, and Nikki McCain (via SCSO / Family handout)
REDDING, CA — A California courtroom has spent the past week unraveling a web of testimony and forensic evidence in the case against Tyler McCain, who is accused of murdering his wife, Nikki Cheng Saelee McCain.
The 39-year-old woman disappeared in May 2024, and though her body has not been found, prosecutors say the circumstantial and forensic evidence paints a damning picture. The ongoing preliminary hearing will determine whether McCain, who has pleaded not guilty, will face trial for her presumed murder.
According to the Record Searchlight, more than 17 witnesses have taken the stand over the first four days of the hearing, with testimony continuing into a fifth day on Tuesday. Shasta County Superior Court Judge Thomas L. Bender is presiding over the proceedings and will decide whether there’s enough evidence to move forward to trial.
McCain, dressed in a blue sweatshirt labeled “Shasta County Jail,” has remained mostly quiet during the hearing. As reported by the Record Searchlight, he has been observed sitting next to his attorney, often resting his head in his hands or leaning forward on the desk, a yellow legal pad in front of him.
Testimony began with those who lived on or near the McCain family’s Olinda Road property in Happy Valley. Felicia Nelson, a former neighbor who lived in a trailer behind the McCain residence, told the court she occasionally saw Nikki but they “were not close at all,” according to the Record Searchlight.
Nelson recalled that Nikki once asked her to install purple hair extensions. More notably, she described the McCains’ relationship as plagued by jealousy.
“He just gets really jealous,” Nelson testified. “They were just a jealous couple,” she said of Tyler and Nikki McCain.
Forensic evidence has played a central role in the hearing. As Record Searchlight reported, Courtney Leadingham, an investigative technician with the Shasta County Sheriff’s Office, explained how investigators used a chemical reagent that glows purple when it reacts with hemoglobin in blood. Leadingham showed photographs of the McCains’ garage floor and Nikki’s Chevy Avalanche truck bed taken before and after treatment with the reagent. Portions of both the garage and the truck bed glowed, prompting audible gasps from observers in the courtroom.
Nikki’s Chevrolet Avalanche was discovered off Highway 36 on May 25, 2024—just days after her family reported her missing—according to NBC News. Investigators processed the vehicle and found what they described as evidence of foul play.
Two witnesses who testified under immunity added more pieces to the puzzle.
According to the Record Searchlight, Michael Ripley and his nephew Justin Karren—both relatives of the McCains by marriage—recalled events in May 2024 that now carry deeper significance. Ripley testified that Karren showed up at his house in Happy Valley asking for help picking up Tyler McCain near Bowman Road, close to where Nikki’s truck was later found. Ripley said McCain had him pull over near a bridge, where they saw the Avalanche.
Tyler reportedly tried to start the truck but couldn’t. When asked if he knew Nikki was missing, Ripley replied, “I was told this happens quite frequently with her.”
Karren, who lived in a trailer behind the McCains’ home, denied any involvement in Nikki’s disappearance. Asked by Deputy District Attorney Toby Powell whether he had anything to do with her vanishing, Karren answered “no.” When asked if he killed Nikki, he again said “no,” as reported by the Record Searchlight.
Tuesday’s proceedings turned more personal.
According to KRCR-TV, Luis Barajas—who said he had a romantic relationship with Nikki in the final days of her life—testified that she had visited his home on May 17, 2024, and that the two exchanged texts and calls into the early hours of May 18. The conversation became heated, and then suddenly stopped.
“She would always text back,” Barajas said. “But that morning, she didn’t.” When asked directly by the prosecution if he had killed Nikki, Barajas responded, “I did not.”
Also on Tuesday, Department of Justice senior criminalist Carolyn Heitsman gave expert testimony on DNA evidence recovered from Nikki’s truck.
According to KRCR-TV, a blood-stained sheet with knotted corners was discovered in the truck bed. Heitsman told the court that based on kinship analysis using DNA from Nikki and Tyler’s daughter, the blood was 120 billion times more likely to belong to Nikki than to anyone else. Additional fluids on the sheet showed what Heitsman described as “very strong support for inclusion” of Tyler McCain’s DNA as well.
Tyler’s mother, Jeanette McCain, also testified on Tuesday, though KRCR-TV reported that she had difficulty recalling many details and was unable to answer several questions.
Nikki McCain was reported missing by her sisters on May 22, 2024, after they hadn’t heard from her since the night of May 17, according to NBC News. Her disappearance came just weeks before she was scheduled to testify in court regarding four felony charges of domestic violence against her husband, Tyler. Those charges, stemming from a December 2023 incident, were dropped in July 2024 when Nikki failed to appear.
On August 20, 2025, following a months-long investigation, the Shasta County Sheriff’s Office arrested Tyler McCain.
As NBC News reported, Sheriff Michael L. Johnson announced the arrest during a press conference, stating: “Detectives recently obtained a murder arrest warrant for Tyler McCain… He was ultimately booked in the Shasta County Jail with no bail for the murder of Nikki.”
Detectives had earlier executed a search warrant at the McCain home and seized evidence they say pointed clearly to homicide. “Various items of evidentiary value were seized,” Sheriff Johnson said. The Sheriff’s Office has since classified the case as a homicide, citing the lack of contact with Nikki, the forensic findings, and the statements collected during interviews.
The search for Nikki’s body remains ongoing. As NBC News noted, law enforcement, volunteers, and family members have combed through waterways, drainage ditches, rural land, and remote properties in an effort to find her. “We’ve used search and rescue, volunteers, friends, family, advocates… trying to give us that next piece in this case,” Sheriff Johnson said.
At the same press conference, Nikki’s sister, Kaye Ford, said, “We are still fighting for justice to be fully served, for my sister’s memory to be honored and for the healing of our family and community.”
The preliminary hearing is expected to continue through Thursday, according to KRCR-TV. Judge Bender will then rule on whether the evidence presented is sufficient to send Tyler McCain to trial for the murder of his wife.
Presumption of Innocence: A presumption of innocence means that any defendant in a criminal trial is presumed to be innocent until they have been proven guilty beyond a reasonable doubt in a court of law. The defendant in this case is only accused of the charges set forth in the criminal complaint. They are innocent until proven guilty.
Editor's Note: ThePo makes every effort to accurately transcribe the contents of affidavits of probable cause contained in criminal complaints. Often, the complaints themselves are copies of copies of faxed copies, and are difficult to read. To confirm the accuracy of our transcription, contact the Magisterial District Court listed above and request a copy of the criminal complaint. It's a public record to which you are entitled.
If you are experiencing domestic abuse, you are not alone. Help is available. Call the National Domestic Violence Hotline at 800-799-7233 or text "START" to 88788 to connect with trained advocates 24/7. Support is free, confidential, and available in over 200 languages. You can also visit thehotline.org for more information and resources.
Must Read
Editor Picks
Latest Articles
DNA Evidence, Knotted Sheets, and No Body: What We’ve Learned in the Nikki McCain Murder Case So Far
The preliminary hearing for Tyler McCain has revealed a chilling timeline built on forensic evidence, key witness testimony, and a case without a body.
By Jacob Charles
Published: September 18, 2025 7:00 am ET
Tyler McCain, left, and Nikki McCain (via SCSO / Family handout)
REDDING, CA — A California courtroom has spent the past week unraveling a web of testimony and forensic evidence in the case against Tyler McCain, who is accused of murdering his wife, Nikki Cheng Saelee McCain.
The 39-year-old woman disappeared in May 2024, and though her body has not been found, prosecutors say the circumstantial and forensic evidence paints a damning picture. The ongoing preliminary hearing will determine whether McCain, who has pleaded not guilty, will face trial for her presumed murder.
According to the Record Searchlight, more than 17 witnesses have taken the stand over the first four days of the hearing, with testimony continuing into a fifth day on Tuesday. Shasta County Superior Court Judge Thomas L. Bender is presiding over the proceedings and will decide whether there’s enough evidence to move forward to trial.
McCain, dressed in a blue sweatshirt labeled “Shasta County Jail,” has remained mostly quiet during the hearing. As reported by the Record Searchlight, he has been observed sitting next to his attorney, often resting his head in his hands or leaning forward on the desk, a yellow legal pad in front of him.
Testimony began with those who lived on or near the McCain family’s Olinda Road property in Happy Valley. Felicia Nelson, a former neighbor who lived in a trailer behind the McCain residence, told the court she occasionally saw Nikki but they “were not close at all,” according to the Record Searchlight.
Nelson recalled that Nikki once asked her to install purple hair extensions. More notably, she described the McCains’ relationship as plagued by jealousy.
“He just gets really jealous,” Nelson testified. “They were just a jealous couple,” she said of Tyler and Nikki McCain.
Forensic evidence has played a central role in the hearing. As Record Searchlight reported, Courtney Leadingham, an investigative technician with the Shasta County Sheriff’s Office, explained how investigators used a chemical reagent that glows purple when it reacts with hemoglobin in blood. Leadingham showed photographs of the McCains’ garage floor and Nikki’s Chevy Avalanche truck bed taken before and after treatment with the reagent. Portions of both the garage and the truck bed glowed, prompting audible gasps from observers in the courtroom.
Nikki’s Chevrolet Avalanche was discovered off Highway 36 on May 25, 2024—just days after her family reported her missing—according to NBC News. Investigators processed the vehicle and found what they described as evidence of foul play.
Two witnesses who testified under immunity added more pieces to the puzzle.
According to the Record Searchlight, Michael Ripley and his nephew Justin Karren—both relatives of the McCains by marriage—recalled events in May 2024 that now carry deeper significance. Ripley testified that Karren showed up at his house in Happy Valley asking for help picking up Tyler McCain near Bowman Road, close to where Nikki’s truck was later found. Ripley said McCain had him pull over near a bridge, where they saw the Avalanche.
Tyler reportedly tried to start the truck but couldn’t. When asked if he knew Nikki was missing, Ripley replied, “I was told this happens quite frequently with her.”
Karren, who lived in a trailer behind the McCains’ home, denied any involvement in Nikki’s disappearance. Asked by Deputy District Attorney Toby Powell whether he had anything to do with her vanishing, Karren answered “no.” When asked if he killed Nikki, he again said “no,” as reported by the Record Searchlight.
Tuesday’s proceedings turned more personal.
According to KRCR-TV, Luis Barajas—who said he had a romantic relationship with Nikki in the final days of her life—testified that she had visited his home on May 17, 2024, and that the two exchanged texts and calls into the early hours of May 18. The conversation became heated, and then suddenly stopped.
“She would always text back,” Barajas said. “But that morning, she didn’t.” When asked directly by the prosecution if he had killed Nikki, Barajas responded, “I did not.”
Also on Tuesday, Department of Justice senior criminalist Carolyn Heitsman gave expert testimony on DNA evidence recovered from Nikki’s truck.
According to KRCR-TV, a blood-stained sheet with knotted corners was discovered in the truck bed. Heitsman told the court that based on kinship analysis using DNA from Nikki and Tyler’s daughter, the blood was 120 billion times more likely to belong to Nikki than to anyone else. Additional fluids on the sheet showed what Heitsman described as “very strong support for inclusion” of Tyler McCain’s DNA as well.
Tyler’s mother, Jeanette McCain, also testified on Tuesday, though KRCR-TV reported that she had difficulty recalling many details and was unable to answer several questions.
Nikki McCain was reported missing by her sisters on May 22, 2024, after they hadn’t heard from her since the night of May 17, according to NBC News. Her disappearance came just weeks before she was scheduled to testify in court regarding four felony charges of domestic violence against her husband, Tyler. Those charges, stemming from a December 2023 incident, were dropped in July 2024 when Nikki failed to appear.
On August 20, 2025, following a months-long investigation, the Shasta County Sheriff’s Office arrested Tyler McCain.
As NBC News reported, Sheriff Michael L. Johnson announced the arrest during a press conference, stating: “Detectives recently obtained a murder arrest warrant for Tyler McCain… He was ultimately booked in the Shasta County Jail with no bail for the murder of Nikki.”
Detectives had earlier executed a search warrant at the McCain home and seized evidence they say pointed clearly to homicide. “Various items of evidentiary value were seized,” Sheriff Johnson said. The Sheriff’s Office has since classified the case as a homicide, citing the lack of contact with Nikki, the forensic findings, and the statements collected during interviews.
The search for Nikki’s body remains ongoing. As NBC News noted, law enforcement, volunteers, and family members have combed through waterways, drainage ditches, rural land, and remote properties in an effort to find her. “We’ve used search and rescue, volunteers, friends, family, advocates… trying to give us that next piece in this case,” Sheriff Johnson said.
At the same press conference, Nikki’s sister, Kaye Ford, said, “We are still fighting for justice to be fully served, for my sister’s memory to be honored and for the healing of our family and community.”
The preliminary hearing is expected to continue through Thursday, according to KRCR-TV. Judge Bender will then rule on whether the evidence presented is sufficient to send Tyler McCain to trial for the murder of his wife.
Presumption of Innocence: A presumption of innocence means that any defendant in a criminal trial is presumed to be innocent until they have been proven guilty beyond a reasonable doubt in a court of law. The defendant in this case is only accused of the charges set forth in the criminal complaint. They are innocent until proven guilty.
Editor's Note: ThePo makes every effort to accurately transcribe the contents of affidavits of probable cause contained in criminal complaints. Often, the complaints themselves are copies of copies of faxed copies, and are difficult to read. To confirm the accuracy of our transcription, contact the Magisterial District Court listed above and request a copy of the criminal complaint. It's a public record to which you are entitled.
If you are experiencing domestic abuse, you are not alone. Help is available. Call the National Domestic Violence Hotline at 800-799-7233 or text "START" to 88788 to connect with trained advocates 24/7. Support is free, confidential, and available in over 200 languages. You can also visit thehotline.org for more information and resources.
Must Read
