Topline: Jury finds Luke Truesdell guilty of murder after his meth-fueled pipe attack leaves four dead.
Published: December 2, 2025 12:18 pm ET
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Luke Truesdell, mugshot (via Linn County Sheriff’s Department)
MARION, Iowa — A Linn County jury convicted an Iowa man of killing four people with a metal pipe during a June 2024 attack in Marion.
Luke Truesdell, 34, was found guilty of three counts of first-degree murder and one count of second-degree murder.
The victims were identified as Romondus Lamar Cooper, 44; Keonna Victoria Ryan, 26; Amanda Sue Parker, 33; and Brett Anthony Brown, 34, according to the Linn County Sheriff’s Office.
Investigators said all four died from blunt force trauma to the head from a three-foot metal piece of pipe.
Authorities said the attack occurred inside a detached garage. Cooper, Ryan, and Parker were pronounced dead at the scene. Brown was taken to a hospital in critical condition and later died.
During the trial, jurors viewed body camera footage in which Truesdell admitted using a metal pipe to bludgeon the victims and directed a detective to the weapon in the outbuilding.
Following his arrest, Truesdell told police he had been using methamphetamine and had not slept for two days, according to the Des Moines Register.
Body camera footage played at trial showed Truesdell telling a Linn County officer during the drive to the sheriff’s office that he “loves” him and asking for a hug, The Gazette reported.
In the recording, Truesdell said he felt less pain and “a lot better” after speaking with law enforcement. Between rambling statements, he added that he felt “like a new person” and promised, “I will never do it again.”
He also claimed he believed the victims were involved in sex trafficking, though investigators found no evidence to support that.
The sheriff’s office also noted Truesdell suggested the crime might be turned “into a movie.” The Register reported those comments were excluded from jury deliberations.
Prosecutors presented forensic evidence and testimony about Truesdell’s drug use and mental state at the time of the killings. The verdict concluded the trial phase of the case.
Jurors convicted Truesdell of first-degree murder in the deaths of Ryan, Parker and Brown, and second-degree murder in Cooper’s death, KCRG reported.
Under Iowa law, first-degree murder carries a mandatory sentence of life in prison without parole. Second-degree murder also carries a life sentence but allows for parole eligibility after a minimum term.
Truesdell’s sentencing hearing is scheduled for Feb. 27, 2026. He remains in custody.
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.
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Jury finds Luke Truesdell guilty of murder after his meth-fueled pipe attack leaves four dead.
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Published: December 2, 2025 12:18 pm ET
Luke Truesdell, mugshot (via Linn County Sheriff’s Department)
MARION, Iowa — A Linn County jury convicted an Iowa man of killing four people with a metal pipe during a June 2024 attack in Marion.
Luke Truesdell, 34, was found guilty of three counts of first-degree murder and one count of second-degree murder.
The victims were identified as Romondus Lamar Cooper, 44; Keonna Victoria Ryan, 26; Amanda Sue Parker, 33; and Brett Anthony Brown, 34, according to the Linn County Sheriff’s Office.
Investigators said all four died from blunt force trauma to the head from a three-foot metal piece of pipe.
Authorities said the attack occurred inside a detached garage. Cooper, Ryan, and Parker were pronounced dead at the scene. Brown was taken to a hospital in critical condition and later died.
During the trial, jurors viewed body camera footage in which Truesdell admitted using a metal pipe to bludgeon the victims and directed a detective to the weapon in the outbuilding.
Following his arrest, Truesdell told police he had been using methamphetamine and had not slept for two days, according to the Des Moines Register.
Body camera footage played at trial showed Truesdell telling a Linn County officer during the drive to the sheriff’s office that he “loves” him and asking for a hug, The Gazette reported.
In the recording, Truesdell said he felt less pain and “a lot better” after speaking with law enforcement. Between rambling statements, he added that he felt “like a new person” and promised, “I will never do it again.”
He also claimed he believed the victims were involved in sex trafficking, though investigators found no evidence to support that.
The sheriff’s office also noted Truesdell suggested the crime might be turned “into a movie.” The Register reported those comments were excluded from jury deliberations.
Prosecutors presented forensic evidence and testimony about Truesdell’s drug use and mental state at the time of the killings. The verdict concluded the trial phase of the case.
Jurors convicted Truesdell of first-degree murder in the deaths of Ryan, Parker and Brown, and second-degree murder in Cooper’s death, KCRG reported.
Under Iowa law, first-degree murder carries a mandatory sentence of life in prison without parole. Second-degree murder also carries a life sentence but allows for parole eligibility after a minimum term.
Truesdell’s sentencing hearing is scheduled for Feb. 27, 2026. He remains in custody.
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.
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Editor Picks
Latest Articles
Iowa Man Convicted of Murder in Fatal Pipe Beatings of 4 People
Jury finds Luke Truesdell guilty of murder after his meth-fueled pipe attack leaves four dead.
By Kate Byrd
Published: December 2, 2025 12:18 pm ET
Luke Truesdell, mugshot (via Linn County Sheriff’s Department)
MARION, Iowa — A Linn County jury convicted an Iowa man of killing four people with a metal pipe during a June 2024 attack in Marion.
Luke Truesdell, 34, was found guilty of three counts of first-degree murder and one count of second-degree murder.
The victims were identified as Romondus Lamar Cooper, 44; Keonna Victoria Ryan, 26; Amanda Sue Parker, 33; and Brett Anthony Brown, 34, according to the Linn County Sheriff’s Office.
Investigators said all four died from blunt force trauma to the head from a three-foot metal piece of pipe.
Authorities said the attack occurred inside a detached garage. Cooper, Ryan, and Parker were pronounced dead at the scene. Brown was taken to a hospital in critical condition and later died.
During the trial, jurors viewed body camera footage in which Truesdell admitted using a metal pipe to bludgeon the victims and directed a detective to the weapon in the outbuilding.
Following his arrest, Truesdell told police he had been using methamphetamine and had not slept for two days, according to the Des Moines Register.
Body camera footage played at trial showed Truesdell telling a Linn County officer during the drive to the sheriff’s office that he “loves” him and asking for a hug, The Gazette reported.
In the recording, Truesdell said he felt less pain and “a lot better” after speaking with law enforcement. Between rambling statements, he added that he felt “like a new person” and promised, “I will never do it again.”
He also claimed he believed the victims were involved in sex trafficking, though investigators found no evidence to support that.
The sheriff’s office also noted Truesdell suggested the crime might be turned “into a movie.” The Register reported those comments were excluded from jury deliberations.
Prosecutors presented forensic evidence and testimony about Truesdell’s drug use and mental state at the time of the killings. The verdict concluded the trial phase of the case.
Jurors convicted Truesdell of first-degree murder in the deaths of Ryan, Parker and Brown, and second-degree murder in Cooper’s death, KCRG reported.
Under Iowa law, first-degree murder carries a mandatory sentence of life in prison without parole. Second-degree murder also carries a life sentence but allows for parole eligibility after a minimum term.
Truesdell’s sentencing hearing is scheduled for Feb. 27, 2026. He remains in custody.
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.
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