Apparently, 2016 claimed yet another actor victim, though the news was not widely noised about except inn cult film fan circles. Indeed, I can't find a real obituary for this chap, except for his daughter's Twitter feed and, as I said, cult film fans.
Richard Towers, who used a myriad of professional names (mainly for his profession as a frequent porn actor back in the 1970s; his last such outing was only a few years ago) and an interesting array of careers (soap and porn actor, and in his later years, "talent agent") is best known to the world as "Dr. John Collingwood", vengeful father of the doomed "Mari", in the 1972 cult classic, Wes Craven's directorial debut LAST HOUSE ON THE LEFT. ("Keep repeating to yourself, 'It's only a movie'!")
Though this was a rare (for Towers) foray into "legitimate" cinema, he chose the exotically aristocratic pseudonym "Gaylord St. James", which became his most famous. This kept fans of the handsome, then-45-year-old actor searching for him for decades, since "Gaylord" never again appeared in anything mainstream. He was such a sought-after mystery, that a satirical blog and then Twitter page about "The World of Gaylord St. James" ran for years, which included rants about "Gaylord's" rocky friendship with Wes Craven, until the latter died several years ago. As the final Tweet put it, "Wes, it's me. I told you I'd find you."
Since little else can be found (maybe someone has a link), I can tell only so much that I have gleaned. Towers, or Richard Deutsch (another name that may be his birth one) was born 05/20/1927, and passed away (after a stay in a nursing home, judging by his final photograph) on 02/27/2016. According to his daughter's website, he was at one time married to a dancer, and the daughter, Joline, has also had a varied career as an actress and model.
Some links (You'll need to scroll down Joline's Twitter page for the announcement and photos of old Richard, and a very nice one taken when he was about 30):
Here's an older article about some of Towers's/ St. James's porn roles and assumed names:
Fan mentions the death (again you have to scroll way down, since this was last year):
Joline Towers website bio: http://jolinetowers.com/bio.html