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.

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.

The NYPD Harbor Unit spotted a suitcase containing the remains of Edwin Echevarria, 65, on Feb. 5. EMS personnel pronounced Echevarria dead at Pier 16, where the suitcase was transported. Millet allegedly made statements linking himself to the crime, ABC 7 reported.

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.