A blood-drenched Staten Island teen who allegedly decapitated his mom’s boyfriend with a knife chillingly told his younger sister, “I did something bad, go to your room,” when she returned home from school, sources revealed Tuesday.
The 19-year-old’s unsettling warning to his sister went unheeded, as she followed blood trails to their West Brighton home’s bathroom and found the 45-year-old city sanitation worker’s body in the tub – with a knife still in his severed head Monday afternoon, sources told The Post.
The grisly discovery prompted the girl, 16, to call her mother, who evidently rushed to the Cary Avenue house as NYPD cops grappled with the scene, neighbors and sources said.
“The mom, she just kept saying to her son, ‘Why would you kill him?! I still loved him!’ She was yelling, screaming from outside into the house. Where her son was,” said neighbor Jennifer Diaz, 46.
The disturbed teenage suspect – who has a long history of mental health issues – left the home with his hands up when police arrived shortly after 4:20 p.m., sources said.
He was taken to the hospital and was seen on Tuesday, being wheeled out of an NYPD precinct on a gurney, still bloodied and wearing a Tyvek suit.
He had not been charged as of Tuesday morning, police said. His name was not immediately released.
Diaz said the alleged killer teen’s mom didn’t even look at him as cops walked him from the house, hands cuffed behind his back, and an eerie expression on his gore-streaked face.
“He had blood on his face and his Timberland construction boots, but not blood on his clothes,” the stunned neighbor said. They must have put clothes on him.
“He looked relieved, no expression on his face. Blank face, but so calm. No expression. He said nothing, just very calm.”
The teen has no criminal record, but has a history of mental illness, including schizophrenia and self-harm going back to 2022, sources said.
The family has a history of domestic incident reports, according to sources. It’s unclear if the siblings are biologically related.
The sanitation worker and the suspect’s mom had been together for nearly six years and “had their ups and downs with the kids,” the victim’s close friend Louis Ortiz told The Post Monday night.
While the alleged killer could be “sweet as pie,” he “was always going through stuff in school — mental health issues,” he said.
Neighbor Mariano Castro, 36, said the victim and his partner’s son appeared to have a normal relationship, having just recently seen the two in their backyard mowing the lawn and grilling.
The teens’ mother’s screams rattled the normally quiet block as EMS responders arrived Monday evening, and at least one neighbor said they saw her vomit as the headless body was carted from the home.
“‘There’s no need to go in, you can’t help him,’” the distraught mother told the first responders, Diaz said.
“She was screaming. She said, ‘His head is in the tub. There’s nothing for you to do.’”