Diagnosis Murder S06E18 - Never Say Die

When a young man with a chip on his shoulder named Tommy gets in a scuffle at BBQ Bob's, Steve arranges it so Tommy complete his community service at a local boxing club for at-risk youth. When a fellow boxer takes his own life in front of Tommy, he turns to Steve and the owner of the boxing club for help in discovering why the boxer was behaving so erratically when he died.