California officer kills friend and self, wounds father

California law enforcement officer kills police officer and critically wounds father before killing self at birthday party

Authorities in California say an off-duty law enforcement officer killed a police officer and critically wounded his father before killing himself in a shooting during a birthday party.

Kings County sheriff's detectives say 32-year-old Ramiro Trevino Jr. died after fatally shooting 31-year-old Johnathan Diaz and critically wounding 58-year-old Ramiro Trevino Sr. Saturday in Hanford.

Authorities say Diaz was a Lemoore police officer and a friend of Trevino Jr., who worked as a Kings County welfare fraud investigator.

Investigators say the shooting occurred around 9 p.m. at the party for the elder Trevino in the community about 33 miles (53 kilometers) south of Fresno.

Detectives say the two men intervened in a fight between Trevino Jr. and his girlfriend and soon after he armed himself with more than one gun.