Three bodies were found in a Vista home on Monday morning, and detectives are investigating the deaths as a potential double murder and suicide.
A friend of someone who lived at the residence on Phil-Mar Lane near Phillips Street called 911 about 5:45 a.m. after finding three people dead inside, a San Diego County sheriff's official said.
Deputies arrived and found two men and a women, all who appear to be in their 50s, apparently shot to death, homicide Lt. Greg Rylaarsdam said. They were all in different rooms in the house.
Investigators are working to determine the circumstances that led to the deaths. They do not believe a suspect is on the loose, Rylaarsdam said.