A man who was released from jail after his beaten and slashed girlfriend refused to cooperate with prosecutors has been indicted in her death.

A Manhattan assistant district attorney, Dana Irvin, did not disclose what charges the grand jury handed up today against defendant Juan Rios, 40. He had been charged by police with second-degree murder in the slaying of Denise Deperrie, 36.

Deperrie’s decaying corpse was found last week in her SoHo apartment by her roommate who, after smelling a foul odor, cleaned the apartment to get rid of it. The stench stayed and the roommate entered Deperrie’s bedroom and found her body.

An autopsy revealed that Deperrie died from stab wounds to the torso, a spokeswoman for the city medical examiner’s office, Ellen Borakove, said.

Rios was arrested September 6. A criminal court judge, Marc Whiten, kept him jailed without bail and scheduled his next court appearance for October 16. At that time the indictment will be unsealed.

Rios’ lawyer, Franklin Rothman, said his client was “despondent and suicidal over what has happened. He continues to profess his love for her and spends most of his time crying.”

Rios also had been arrested earlier this month on charges he assaulted Deperrie in her apartment on July 30, punching her and breaking her nose, and using a sword to cut her leg, chin, and neck, police said. The sword was never recovered.

A judge had ordered Rios held on $10,000 bail on the assault charge and issued a restraining order. But Rios was released from jail August 9 because, without the cooperation of the victim, prosecutors failed to get an indictment.

Deperrie was the second woman found dead by the same person in the same bedroom. Last June, the individual, whose names have not been released, discovered the previous roommate dead in the third-floor, two-bedroom flat on Crosby Street. Authorities concluded that she had died of a narcotics overdose.