COMING UP - THE SEASON PREMIERE OF 48 HOURS MYSTERY: "ARTURO GATTI'S LAST FIGHT," SATURDAY, SEPT. 24 (10:00 PM, ET/PT)

WHAT: The 48 HOURS MYSTERY season premiere brings you an investigation into the mysterious death of world championship boxer Arturo Gatti.

WHO: Correspondent Erin Moriarty reports on Gatti, the ultimate blood-and-guts warrior, who won three world titles, including welterweight champion. A multi-millionaire known for his legendary trilogy of fights with Mickey Ward, Gatti's professional fights were nothing compared to the shadows he faced outside the ring. Two years after retiring, did Gatti kill himself, or was it murder?

WHEN: Saturday, Sept. 24 (10:00 PM, ET/PT)

WHY YOU Exclusive television interviews with:

SHOULD

WATCH: - The woman at the center of the drama: Gatti's widow, Amanda, in her first television interview.

- Gatti's brother, Joe, who speaks for the first time on-camera about the demons his brother faced. He shares his own theory about how Arturo died, a serious departure from what the rest of the Gatti family is convinced happened that night.

- Mickey Ward, whose life story became an award-winning movie, "The Fighter," tells us his friend would never have taken his own life.

- Mario Costa, a friend who knew Gatti since he was 17 years old, and provides insight into the truth of the champion's emotional state.

DETAILS TO FOLLOW

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