UPDATE: A new report from the Hamilton County Medical Examiner's Office has determined that a Chattanooga police officer did not kill a suicide victim. 

Officer Brian Cottell is accused of firing three shots at a suicide victim on Oakwood Drive on August 26th. 
The autopsy shows the victim died from a self-inflicted gunshot wound to the chest, and Officer Cottell shot the victim once in the right thigh.

Two other rounds that were also fired hit a nearby chair.

The report's findings are consistent with what Cottell's attorney told Channel 3 last week. 

The Chattanooga Police Department's internal investigation is still underway. 

PREVIOUS STORY: Chattanooga police officer Brian Cottell's attorney confirms he is officer being investigated for shooting a suicide victim.

When officers arrived at the apartment complex on Oakwood Drive over the weekend they told the man to put down his gun, he refused and fired a fatal shot.

That's when police say Cottell fired his gun, hitting the man once in the leg.

Cottell is on paid leave while internal affairs investigators look into the incident.

It’s not the first time Cottell has been investigated.

Channel 3 uncovered 11 other investigations into Cottell's behavior since 2013.

Investigators determined Cottell violated policy in 4 of those cases, but Cottell was only disciplined once in 2014 when he received verbal counseling for being rude on the job.

Cottell's attorney had no comment on his behalf about this latest investigation.

PREVIOUS STORY: A Chattanooga police officer accidentally fired his gun while responding to a suicide threat on Sunday morning.

It happened shortly after 11:30 a.m. in the 4000 block of Oakwood Drive.

CPD spokesperson Elisa Myzal says police at the scene told the man threatening suicide to put down his gun.

Myzal says the man refused to listen to the commands given by police and fatally shot himself.

Myzal says one of the officers unintentionally fired his gun three times, hitting a chair twice and the leg of the deceased man.

All of the officers that responded to the scene are on leave, per CPD policy.

The name of the officer who fired his gun has not been released.

Members of the Violent Crimes Bureau, Crime Scene, and Internal Affairs Units are actively investigating.

If you or someone you know is contemplating suicide, click here for help from the Tennessee Suicide Prevention Network or call 1-800-273-TALK (8255).

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