SAN JOSE (BCN) — Police are looking for the adult son of a couple found shot and killed at a San Jose home on Sunday night, but he is not considered a suspect in the case.

San Jose residents Shamima Rabbi, 57 and Golam Rabbi, 59, were found dead under suspicious circumstances in the 3000 block of Lucas Court at 1:47 p.m. Sunday, according to police.

Police said officers responded and found the couple shot at least once.

The couple had two sons, a boy who investigators have already contacted and an adult son wanted for questioning, police said.

Investigators do not believe the shooting was random or a hate crime and the suspect or suspects knew the family, according to police.

San Jose police said on Tuesday they are investigating the case as a double homicide.