Aaron Cooney, 49, faces an open murder charge for allegedly killing his mother with “multiple” stab wounds on Mother’s Day.

His mother, who has not been identified by police as of Monday, was found unresponsive at a home on the 1600 block of Caprino Avenue by Las Vegas Metropolitan Police Department (LVMPD) officers on Sunday.

LVMPD said in a press release that she had been stabbed multiple times.

Medical personnel pronounced the victim dead at the scene.

Cooney’s lengthy criminal record includes first-degree kidnapping, domestic battery, grand larceny auto, battery with a deadly weapon, burglary, and drug possession, according to Clark County records.

Authorities are asking anyone with information about the incident to contact LVMPD at (702) 828-3521 or via email at homicide@lvmpd.org. Anonymous tipsters can call (702) 385-5555.