She's being held for investigation of murder. Makes me wonder if there's more to this story -- a history of abuse?

A 22-year-old woman, who police say shot her boyfriend during an argument, is being held for investigation of first-degree murder.

According to Denver police, they responded Friday to a home in the 2900 block of Pontiac Street on reports of a shooting.

There, they found the victim, whose identity has not been released, dead of a shotgun wound to the head.

The shooting was the result of an argument between the victim and his girlfriend, according to investigators.

The girlfriend, identified as Tatianna Manon-Davis, was still at the scene and was hysterical and hyperventilating, according to police.
http://www.denverpost.com/ci_12237815