A few items came to light, he had parkinsons (noted above), was $30M+ in debt, show was cancelled, and probably a littany of other issues we may never know about.

It's easy to pass judgement on his choice, but impossible to understand. Only the individual with his religion, beliefs, personal philosophy, and condition can judge what is the best course of action. Some commit suicide to avoid justice, that's cowardly. If someone punches out because of a terminal illness, and chooses not to bankrupt the family, that's a different classification all together.