Metro

Cops rule death of woman found at Seaport a homicide, arrest third suspect

The death of a homeless woman who was stabbed, beaten and then wrapped in plastic at an old South Street Seaport building has been ruled a homicide — cops sa🌼id Tuesday, as they announced the arrest of a suspect who allegedly helped wrap up the victim’s body.

The body of 19-year-old Rosalee Sanchez was discovered around 9:20 a.m. Saturd𓃲ay stashed on the second-floor staircase of the abandoned Fulton Fish Market building at 95 South Street, according to cops and law enforcement sources.

The city medical examiner’s office determined that she died of blunt force trauma to the head.

Amber Wilson, 35, who is homeless in New York City but whose last known address was in Cumberland, Maryland, was arrested and charged with tampering with physical eviden🍷ce, police said.

Austin Boehm, 25, and Christian Mercado, 20, were also arrested and charged with second-degree murder.

Boehm admitted to stabbin♍g and beating Sanchez, while Mercado copped to striking her with a shovel and strangling her with a rope, according to a criminal complain🌠t.

“I was there and Austin and the beast told me to wrap up her body with the tape and the plastic,” Wilson told authorities, according to the complaint. “I put tape on her and then she was covered in plastic and then I put a metal sheet over her body.”

The court papers don’t elaborate on what Wilson meant by “the beast.”

Upon attempting to check himself into Bellevue Hospital’s psychiatric ward Saturday, Boehm confessed to beating and k♎illing Sanchez, sources said Sunday.

The motive for the murder remained 🍨unclear Tuesday.

Locals said homeless people have long since taken over the building — once a vital part of the South Street Seaport’s bustling fish market, which relocated to Thඣe Bronx in 2005.