I guess 75 is young in a world inhabited by Jenkins and CJ. 
Actually, he was only 2 years older than my father. Sure seems like an early death to me.
This is doubly sad news. Early deaths are always so, but here was a man of genuine talent, not like usual crowd that gets obit-ed on this board. I'll admit that I have a soft spot for writers, and Kaminsky was, from all accounts, a writer's writer. Certainly his dialog for OUATIA will outlive us all.