First off, Samuel Israel III did not kill himself. See earlier post (another hedge funder goes to the Big Easy). He faked his death and only turned himself in because his girlfriend had been arrested. He stated she had nothing to do with it. Except for that aiding & abetting thing.
In other news, another Iraq vet dies under unusual circumstances. The article reports that an overdose of prescription medicine was involved, and Dwyer (the Iraq vet) called for ambulance. Accident? Suicide's remorse? Who knows.