What a fantastic set of creations he’s left us, and what an inspiration to future effects artists.

Here’s the tribute from Ain’t It Cool, and in case you need reminding of all the things he’s done, here’s his IMDB page. He made The Terminator, the Predator, and was instrumental in making H. R. Giger’s designs for the Alien come to life. He’s a great loss to special effects.