Sole Survivor and 4th Victim in Metal Pipe Attack Dies, Suspect Charged with Another Count of Murder

One of the "possible motives" behind the attack "was the possibility of the crime being made into a movie," said the Linn County Sheriff's Office

<p>linn county sheriffs department</p> Luke Truesdell

linn county sheriffs department

Luke Truesdell

The lone survivor of a metal pipe attack from a man in Iowa that left three others dead at the scene has died.

According to a press release from the Linn County Sheriff's Office, Brent Anthony Brown, 34, who was flown to an area hospital with life-threatening injuries, was pronounced dead by the Johnson County Medical Examiner on Friday, June 7.

His body will be transported to the state medical examiner's office for an autopsy as an investigation into the attacks continues, per the release.

Luke Truesdell, 34, has been charged with a fourth count of first-degree murder after the June 5 incident at a property in rural Marion, Iowa.

<p>Getty</p> Stock image of police siren

Getty

Stock image of police siren

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He is being held on a $4 million bond, according to online jail records reviewed by PEOPLE.

Truesdell's other alleged victims were Romondus Lamar Cooper, 44, of Cedar Rapids; Keonna Victoria Ryan, 26, of Cedar Rapids; and Amanda Sue Parker, 33, of Vinton.

<p>linn county sheriffs department</p> Luke Truesdell

linn county sheriffs department

Luke Truesdell

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The Linn County Sheriff's Office shared in a previous press release that its investigation "has revealed that the victims appeared to have received their injuries as the result of blunt force trauma to the head, delivered by a metal pipe."

Police said one of the "possible motives" behind the attack "was the possibility of the crime being made into a movie."

Linn County Attorney Nick Maybanks also shared in an interview with KWWL that "the individuals did know each other."

<p>Getty</p> Stock image of yellow crime scene tape

Getty

Stock image of yellow crime scene tape

"The extent of that relationship is still under investigation. We're still trying to get to the bottom of exactly what precipitated this," he said, adding that they "definitely were associates at minimum."

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According to KGAN, the crime is the largest mass murder in eastern Iowa since March 2008 when Steve Sueppel, an Iowa City banker facing federal embezzlement charges, killed his wife and four adopted children before taking his own life.

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