MILLIS (CBS) – A 24-year-old man is accused of stabbing his parents in a Millis restaurant and is expected to be also be charged with his girlfriend’s murder.

Millis Police said Benjamin Walsh was taken into custody Saturday night after his parents were stabbed at Primavera on Pleasant Street around 7 p.m.

READ MORE: Stimulus Check Update: Is A Fourth Relief Payment Coming?

They are expected to survive.

The stabbings happened during a family party. Police said relatives subdued Walsh and tied him up before police arrived.

A husband and wife were stabbed at the Primavera restaurant in Millis. (WBZ-TV)

When police conducted a wellness check on Walsh’s apartment, 20-year-old Olivia Bergstrom, who was his girlfriend, was found dead from an apparent stabbing.

READ MORE: Ex-Boston Officer Patrick Rose Stayed On Force Despite Abuse Allegation

Investigators believe the two incidents are connected.

Olivia Bergstrom was killed in a Needham home. (Facebook Photo)

Walsh will be arraigned Monday in Wrentham on charges connected to his parents’ stabbings. Police said Walsh will likely then be arraigned in Dedham District Court for Bergstrom’s murder.

Police believe Walsh has no criminal past.

MORE NEWS: Woman Seeks Funeral Reimbursement From FEMA After Losing Husband, Father To COVID

A knife has been recovered as part of the investigation.