Authorities in Southern California on Friday said a triple murder suspect is being sought for the January deaths of three relatives. 

The San Bernardino Sheriff's Department identified the suspected killer as 29-year-old Pete Renteria. He remains on the loose. 

CA CONVICTED KILLER DIAGNOSED WITH TERMINAL CANCER TO BE RELEASED

Deputies responded on Jan. 30 to a home in Ontario, 35 miles east of Los Angeles, just after 9 p.m. when they found three dead bodies. 

The victims were identified as Sonia Ramirez, 68, her husband George Ramirez, 66, and the couple's son David Ramirez, 43. Investigators said all three victims had been shot.

Neighbors told FOX Los Angeles they saw suspicious activity at the house, including cars and people going in and out.

CLICK HERE TO GET THE FOX NEWS APP 

Investigators found a gun in a neighbor's backyard but did not confirm if it was the suspected murder weapon. 

No motive for the killings has been disclosed.