I heard he actually died after a giant phallus-shaped object burst from his chest.
Jokes aside (I think he would have liked that one), he was a fantastic artist, and he's responsible for some truly extraordinary creations across multiple industries.
The design of the Xenomorph is hands-down the single most influential piece of art in modern science fiction.
Ohhh, now that's very sad - that was a very creative and successful artist who made lots of haunting art - even in games - Darkseed on Amiga and PC anyone?
Rest In Peace H. R. Giger....