With Arturo Gatti's second autopsy report due Aug. 30 in New Jersey, there's now no doubt the Montreal boxer was the victim of a homicide, not a suicide, his manager said Tuesday.

Gatti, a one-time junior welterweight champion, was found dead in July 2009 in Brazil. Police initially arrested Gatti's wife, Amanda Rodrigues, but determined after an autopsy that Gatti had hanged himself.

The late boxer's manager, Pat Lynch, unsatisfied with the results of the first autopsy, hired a private firm to undertake a second investigation.

Lynch said he never believed it was a suicide, adding that a press conference would be held Aug. 30 to discuss the latest findings.

Private investigator Paul Ciolino wouldn't reveal details Tuesday but said he was 100% sure Gatti didn't take his own life.

Ciolino, of Chicago, said he worked on the case for 10 months, spent three weeks in Brazil, and interrogated more than 75 people in three countries. He alleged that the first autopsy was done quickly and erratically.