Coroner identifies 2 adults, 2 children killed in California

A barricade stretches across the road leading to the home where four people were found dead, Thursday, March 23, 2017, in Sacramento, Calif. A suspect is being held in San Francisco. Police are not saying how the four were killed and are not identifying the victims, including their genders and ages. (AP Photo/Rich Pedroncelli) (The Associated Press)

This booking photo provided by the Sacramento, Calif., Police Department released Friday, March 24, 2017, shows Salvador Vasquez-Oliva. Police arrested a Vasquez-Oliva Friday on suspicion of homicide in connection to the killings of two adults and two juveniles in Sacramento a day earlier. (Sacramento Police Department via AP) (The Associated Press)

Investigators put on protective suits before entering a home where four people were found dead, Thursday, March 23, 2017, in Sacramento, Calif. A suspect is being held in San Francisco. Police are not saying how the four were killed and are not immediately identifying the victims, including their genders and ages .(AP Photo/Rich Pedroncelli) (The Associated Press)

Authorities have released the identities of four people killed in a quiet Northern California neighborhood.

The Sacramento County coroner's office on Sunday confirmed the victims as 45-year-old Angelique Vasquez; her 14-year-old daughter, Mia Vasquez; her 11-year-old son, Alvin Vasquez; and 21-year-old Ashley Coleman.

Sacramento police Officer Matthew McPhail says detectives didn't immediately know what relationship Coleman had to the Vasquez family.

The victims were found in a single-story home Thursday. McPhail says investigators are still processing the scene and are treating the entire house as evidence.

Police arrested 56-year-old Salvador Vasquez-Oliva on suspicion of homicide in connection to the killings. They have not named a motive or said what relationship Vasquez-Oliva has to the dead.

Sgt. Bryce Heinlein said Thursday that the killings don't appear to be random.