Val Kilmer's 'I'm your huckleberry' is one of many memorable Tombstone quotes, but where did it come from? The expression is far older than you might think.

Actors have taken to social media to mourn the death of Val Kilmer, who died Tuesday in Los Angeles at 65. The “Tombstone” and “Top Gun” died from pneumonia. He had recovered after a 2014 throat cancer diagnosis that required two tracheotomies.