The suspect, 41-year-old Louis Peter Hernandez, allegedly shot and killed his girlfriend and another person at a Fontana home on Nov. 25. He then shot and killed his ex-girlfriend in Riverside County, officials allege.
The terrifying spree also involved an altercation with a fourth surviving gunshot victim in Riverside County following an argument. That shooting remains under investigation and the victim is recovering.
Hernandez, who is a known gang member with a history of violence, according to officials, was out on probation and post-release community supervision.
Additionally, officials said special allegations for prior felonies and special circumstances have been filed, which makes it possible for this to become a capital murder case.