A teenager was arrested Tuesday after allegedly stabbing and decapitating his mother’s boyfriend in Staten Island, New York.

Damien Hurstel, 19, of Staten Island, is charged with murder and criminal possession of a weapon, according to the New York City Police Department (NYPD).

Officers responded to a 911 call just before 4:30 p.m. Monday for a man who was stabbed inside a home.

BLUE CITY FELON WITH VIOLENT HISTORY ARRESTED IN DEADLY TRAIN PLATFORM STABBING AFTER PAROLE RELEASE: REPORT

When police arrived, they found Anthony Casalaspro, 45, of Staten Island, with multiple stab wounds to the head and neck, according to a statement from the NYPD.

EMS responded and pronounced Casalaspro dead at the scene.

COMMUTER CRITICAL IN LATEST BLUE CITY UNPROVOKED THROAT SLASHING ATTACK; SUSPECT CLAIMS ‘I JUST SCARED HIM’

Casalaspro, a disabled NYC Department of Sanitation worker, was beheaded, the New York Post reported.

He was allegedly found in a bathtub by a child inside the home, according to the report.

BLUE CITY CRIME CRISIS: REPEAT OFFENDER STRIKES AGAIN AFTER CHARLOTTE TRAIN MURDER

The suspect and the victim both lived at the same address, the NYPD confirmed.

Authorities have not yet released a motive.