David Cassidy: The Last Session' airs Monday night on A&E. The late actor opened up about his health decline in a new documentary, 'David Cassidy: The Last Session,' premiering June 11 on A&E Network.

The life story of teen actor and singer David Cassidy, best remembered for the TV show hit "The Partridge Family", is presented with his up's and down's, the rise to fame, personal relationships ...