Mr. Van Dyke is still alive, as of 2013 May. Thus, no one has literally murdered Dick Van Dyke.
What movies did Dick Van Dyke star in?
Night at the Museum (2006) Curious George (2006)
Chitty Chitty Bang Bang (1968)
Mary Poppins (1964)
he's always been in a few TV shows, if you want to see more, just look him up on http://www.imdb.com
Did Dick Van Dyke die of Reyes Syndrome?
No. He is still alive. His granddaughter died of Reye's syndrome.