A Detroit man has been sentenced to life in prison without the possibility of parole for a 2012 triple homicide in Flint.

According to WNEM, 21-year-old James P. Simpkins was found guilty of three first-degree murder counts on January 15th. The mandatory life sentence came down on Thursday from Genesee County Circuit Court Judge Geoffrey Neithercut.

Prosecutors argued that Simpkins went inside the bedroom of a Flint home and shot four people, killing his brother Anthony Simpkins and brother's girlfriend Erica Billingsly. A second man in the room, Bobby Jackson, also was shot but initially survived before being stomped to death by Simpkins. A fourth victim, another woman in the room, was shot but survived.