Scrimm was a Glass Eye Pix productions regular, having appeared in films such as I Sell The Dead, Satan Hates You, and The Off Season, as well as in the popular Tales From Beyond The Pale radio plays. Scrimm also had a recurring role on the TV series Alias, possibly because J.J. Abrams is a noted Phantasm fan (Abrams is restoring the film). According to IMDB, Scrimm's last screen role will be in Phantasm: Ravager.
By every account, Scrimm was a gentle soul who will be greatly missed, particularly by genre fans who both feared and admired him as the Tall Man. Godspeed.
On Facebook, Coscarelli simply wrote this:
Angus Scrimm passed away peacefully tonight surrounded by his friends and loved ones. He was 89 years old. His performance as the Tall Man is a towering achievement in horror film history. He was the last in a long line of classic horror movie stars. Angus was a terrific actor and an even better friend. He will be missed.