SAN ANTONIO — San Antonio police say they found heroin and a syringe next to the body of troubled boxer Tony Ayala Jr.

According to a police report released Thursday, investigators say they suspect a drug overdose killed Ayala. He was a rising star in boxing before a 1983 rape conviction that led to the first of two prison terms.

Ayala's body was found Tuesday at an Ayala family-owned gym where he was trying to build a career as a trainer.

According to the offense report, a woman close to Ayala told police that she and Ayala had quarreled in a house they shared the night before his body was found. Police arrived to find the woman weeping over his body.