A Roswell man convicted in the 2009 stabbing death of a former girlfriend will serve the rest of his life in prison, the Fulton County district attorney said Friday.

Calvin Myers, 40, who had faced the death penalty, pleaded guilty Friday to murder, felony murder, three counts of aggravated assault and possession of a knife during the commission of a felony.

He was sentenced to life plus 80 years in the murder of Minka Grogran, 40.

Grogran was killed April 18, 2009, after Myers drove his car through the front wall of her Steamside Drive apartment in Roswell and stabbed her 16 times. Myers also tried to stab a man in the apartment but the witness escaped and called 911.

Myers, after barricading himself in the apartment, eventually surrendered to police.