Melvin Dummar, who claimed to be heir to Howard Hughes estate, dies at 74

Melvin E. Dummar was driving through the Nevada desert in December 1967 when he stopped to relieve himself and saw, he said, a thin, graying man lying on the ground, bleeding. The only right thing to do was to stop, and so Dummar did.

As he told it, he invited the man into his Chevy, asked him…