UPDATE: A 21-year-old Maywood man was charged with reckless manslaughter Saturday following an autopsy on a 19-year-old Bloomingdale woman who'd been with him at a party in a Hackensack high-rise apartment.

Michael T. Gaffney recklessly caused the death of Francis Victoria Garcia, who was with him in the back seat of a car parked on the top level of a garage at 140 Prospect Avenue, Bergen County Prosecutor Mark Musella said.

"Compression injuries" were found around Garcia's neck, indicating that asphyxiation killed her -- and not a drug overdose -- according to the Bergen County Medical Examiner's Office, which conducted an autopsy on Saturday.

The 5-foot-8-inch, 180-pound Gaffney told detectives that they'd taken prescription medication and were having rough sex in her car when she lost consciousness, a law enforcement source said.

City police got a 911 call at 2:14 a.m., Musella said.

The victim was taken to Hackensack University Medical Center, where she was pronounced dead.

Gaffney, meanwhile, remained held in the Bergen County Jail pending a first appearance in Central Judicial Processing Court.

A conviction at trial for second-degree manslaughter in New Jersey can result in a state prison sentence of five to 10 years and a fine of up to $150,000. The convict must serve 85% of the sentence under New Jersey's No Early Release Act.

"I know Mike and he is a good soul," Amy Guggino wrote in a GoFundMe campaign that seeks to raise money toward "fair representation" for Gaffney. "I want to support him and his family through this tragedy. I pray for both families and for all of the community during this period of healing."

Click here to sign up for Daily Voice's free daily emails and news alerts.