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Lawsuit filed in case of woman killed with DPD sergeant’s gun

On what would have been Isabella Thallas’s 22nd birthday, her father and boyfriend have filed a lawsuit against the murder suspect and a former DPD sergeant.

DENVER — The father of Isabella Thallas and her boyfriend are taking legal action nearly a year to the day she was shot and killed with an AK-47 that belonged to a Denver Police sergeant who hadn't reported it stolen. 

On Tuesday, her father Josh Thallas and boyfriend Darion Simon filed a lawsuit in state district court against murder suspect Michael Close and former Denver Police (DPD) sergeant Daniel Politica. 

The lawsuit also names Politica’s company, Tyrant Arms, LLC as a defendant. 

RELATED: DPD officer resigns after his gun was used in shooting of Isabella Thallas

Isabella Thallas was fatally shot on June 10, 2020, while walking a dog in a downtown alleyway with Simon, who was also shot but survived.

Credit: Ana Thallas

>The video above aired in May when it was learned that Politica resigned

Close is accused of firing at the couple through his apartment window with an AK-47 during a dispute about the dog defecating in the alleyway. 

Credit: Denver Police

Close has pleaded not guilty by reason of insanity and faces 22 charges, including first-degree murder and using an illegal high-capacity magazine. 

Close is accused of using an AK-47 that belongs to Politica, who is his friend and former police sergeant.

Politica didn’t report the gun missing until the day of the murder. 

“Politica breached his duty by negligently entrusting the use of his weapon and ammunition to Michael Close knowing he was a person with a history of irresponsible, reckless, and negligent behavior,” the lawsuit says.

RELATED: 'It's horrific:' Mother of murder victim describes learning the gun used to shoot her daughter belonged to DPD officer

Politica resigned from the DPD in March, however, he never faced any discipline over his missing AK-47 being used in the murder.

Credit: KUSA

DPD said at the time the gun was Politica’s personal weapon and not an approved firearm for on-duty use, which wouldn’t make the incident subject to an internal affairs investigation.

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