When I was a kid, and I consumed books like fire tearing through a dry thicket, I discovered a very small entry in an encyclopedia of horror stories. It referenced a tale I would spend a fair amount of years trying to find, as the only evidence of it even existing was in out-of-print magazines and a practically impossible to find book called 'Nighttouch'. Just this past year, though, I picked up a book from a garage sale, and discovered this same story I'd been looking for, completely by surprise when I was browsing through the pages later. The story is called 'Drink My Blood', also called 'Blood Son', and it was written in 1951. Though the story wasn't my favorite Matheson work, it did motivate me to read and see his other works, and truly appreciate him for the artist he was. For those of you interested in reading this story, I found it in a horror anthology called 'Vampires: Two Centuries of Great Vampire Stories', edited by Alan Ryan.
Here's a very short video I found on youtube of Richard discussing how he wants to be remembered. I think he got his wish. R.I.P. Mister Matheson. I, for one, will never forget you.