On Dec. 21, Corey O’Neal Brewer was sentenced to life in prison with the possibility of parole after 10 years.

In July 2015, Brewer was charged with one count of second degree murder. He pleaded no contest last month, according to the Washoe County District Attorney’s Office.

He was arrested after his grandmother called 911 to report that Brewer had found is 30-year-old girlfriend dead in the couple’s bedroom at their apartment. Reno police officers and medical personnel noticed bruising on the victim, officials said in a news release on Thursday.

Brewer reportedly told police that his girlfriend was fine when he left earlier that morning on a motorcycle ride. He told police that when arrived home, he noticed that she was dead and called his grandmother who lived in Wadsworth. Brewer’s grandmother then drove to their apartment in Reno and called police when she saw that the girlfriend was dead.

An autopsy found that the victim suffered from asphyxiation and blunt force trauma. She had “extensive” injuries to her head, torso and organs, officials said.

“Interviews with witnesses revealed a history of domestic violence between the couple,” officials with the Washoe County District Attorney’s Office said the news release.

Officials said Brewer eventually admitted to lying about leaving for a motorcycle ride.

“Brewer stated that he and the victim had ingested methamphetamine, and because of that he claimed not to know how the victim suffered the injuries she did,” officials said in the news release.

Other evidence also implicated Brewer, officials said.

Deputy District Attorney Zach Young argued at the sentencing hearing that Brewer had severely beaten and strangled his girlfriend for years and that he had a violent criminal past, officials said.

“…It was doubtful that Brewer did not remember how his girlfriend had suffered her injuries,” officials said Young argued in court.

Brewer had multiple convictions for drug and violent offenses. He was previously convicted of false imprisonment and domestic battery. He was also convicted of assault with a deadly weapon for placing a loaded gun into a former girlfriend’s mouth, officials said.

More than 100 people attended the sentencing hearing dressed in purple, which is the color that represents the movement to end domestic violence.