Nathaniel Hendren was charged Friday with involuntary manslaughter and armed criminal action in 24-year-old Katlyn Alix's death.

ST. LOUIS – The mugshot of a St. Louis police officer charged in his co-worker’s shooting death has been released.

Nathaniel Hendren was charged Friday with involuntary manslaughter and armed criminal action in 24-year-old Katlyn Alix's death.

According to court documents, Hendren met Alix at his apartment in the 700 block of Dover Thursday morning. Hendren was on-duty at the time and Alix was not.

While at his apartment, both officers -on duty- were playing with guns when Hendren took out a revolver. Hendren emptied the cylinder of the revolver and put one cartridge back in it.

He spun the cylinder, pointed the gun away and pulled the trigger. The gun didn’t fire. Alix took the gun and pointed it at Hendren and pulled the trigger, it didn’t fire then either.

Hendren took the gun back, pointed it at Alix and pulled the trigger. But this time, the gun fired, hitting Alix in the chest. She was taken to the hospital where she later died.

According to the statement, another on-duty officer, Hendren’s partner, was at the apartment at the time of the incident.

He said he felt uncomfortable with the situation and didn’t want any part of it and started to leave. As he was leaving the apartment, he heard a shot. He went back into the room and saw what happened, according to court documents.

On Monday, police said Hendren has been placed on administrative suspension, which is always unpaid. The other officer was placed on administrative leave.

5 On Your Side has requested interviews with Chief Hayden everyday since the shooting – he has declined. On Monday a St. Louis Metropolitan Police Department spokesperson sent the following statement,