Officials have confirmed two bodies have been discovered inside a Sunnyvale home, Tuesday night.
Dave Pitts of the Sunyvale Public Safety, said the two dead were found at 813 Nectarine Ave. Both were shot to death.
Officials said investigators are questioning a person at headquarters, but they were not saying who the person is.
Sunnyvale Public Safety said they are not ruling a double homicide, nor are they ruling out a murder-suicide.
Neighbors say three people live at that address - a father, mother and teenager.
Pitts confirmed the two people dead are adults, but not if they are the residents of the home.