DENVER - Jury deliberations resume Monday in the case of a Denver man who allegedly shot, killed and dismembered 16-year-old Alicia Martinez.
Jurors are determining whether Edward Romero is guilty of first-degree murder or not guilty by reason of insanity.
Romero is also facing charges of tampering with physical evidence and abuse of corpse.
Martinez went to a house party with a friend on October 22, 2010 at Romero's house.
Romero's ex-girlfriend, Francesca Pagliasotti, testified that she later she saw Martinez's "body with a gunshot wound to the head" lying on the couch in the garage.
She told the jury she begged Romero to turn himself in but he refused. Pagliasotti said she then saw Romero dismember the teenager's body. Pagliasotti was sentenced to 10 years for being an accessory to the murder and abuse of a corpse.
Romero has pleaded not guilty by reason of insanity.
During the trial, the prosecution quoted doctors who determined that Romero may have been suffering from bipolar disorder at times, but he was not psychotic or insane.
A defense attorney said every doctor Romero had seen noted the same symptoms, but came up with different diagnoses. The defense said Romero suffers memory loss and blackouts, hears voices and suffers from both insomnia and panic attacks.
The doctor who finally figured it out, the attorney said, was one who specialized in dissociative disorders. The defense said Romero doesn't have multiple personalities, but instead has one conscious mind that is broken.
Martinez's mother, Vanessa Martinez, says she believes Romero is faking his mental illness.
“It was all a show,” Martinez said. "I mean what do you expect? He did something so horrible and so ugly and you know he's going to try to do whatever he can to try to get himself out of it."