Oakley man guilty of murdering romantic rival on Valentine’s Day, faces life without parole

MARTINEZ — After two full days of deliberation, a Contra Costa jury convicted an Oakley man of murdering a 21-year-old over jealousy on Valentine’s Day 2020.

Jose Quintanilla, 27, was convicted Friday of first degree murder, an enhancement for lying in wait, and another enhancement for personal use of a firearm. Prosecutors say he plotted with co-defendants Sabrina Glenn and Angel Rodriguez to set up the victim, Brentwood resident David Olivares, based on a belief that Olivares had sex with Quintanilla’s wife.