The torso of 65-year-old Edwin Echevarria was found in a sleeping bag in a suitcase floating in the river. Police have arrested his partner's son.

The human remains found in a suitcase floating in the East River have been identified as Edwin Echevarria, 65, who was allegedly murdered by 23-year-old Christian Miller.

The victim was identified as Edwin Echevarria, a 65-year-old man from the Lower East Side — and his alleged killer is his 23-year-old roommate, police said.

NYPD officials said officers arrested Lower East Side resident Christian Millet around 9 p.m. Wednesday in connection with the death of Edwin Echevarria, 65, whose torso was found last week after a ferry crew spotted the suitcase in the river near Governors Island. Both men lived in the same apartment at NYCHA’s Baruch Houses, according to police.

A man was arrested in NYC after his roommate's remains were found in a suitcase in the East River. The victim was identified as 65-year-old Edwin Echevarria. The suspect, Christian Millet, has been charged with murder.

A man was charged with second-degree murder after his reported roommate's remains turned up in a suitcase on the East River.New York police said they retrieved

A New York City ferry captain saw the luggage and called the Police Department’s Harbor Unit. The authorities have not identified the remains.

The NYPD has arrested the roommate of a man whose dismembered body was found floating inside a suitcase in the East River last week—after the two had been fighting about food, sources said.