He hasn't done very much that I'm aware of, but it was enough to leave an impression. In 1986, he directed the first Harry Potter movie. It was called "Troll" and it was so-so. In recent years, he campaigned to remake it, but that fell through.

A couple years after Troll, he directed Friday the 13th Part VII: The New Blood, a movie so graphic, it was cut to shreds by the MPAA until it was barely recognizable. They got pretty bad with what they'd deem appropriate in all of their movies, but Part 7 had it the worst. They cut out entire characters and kills because they couldn't handle what was being depicted on screen.

This also marked the first time that the definitive Jason, Kane Hodder, would put on the hockey mask, and this is the most he'd been at Crystal Lake for all of his efforts. After this movie, Jason left camp to go to New York, Hell, and Space, so in a sense, JCB directed the last true Jason movie to be set at Camp Crystal Lake.

Then, a few years later, he directed a movie I found surprisingly awesome, and that movie is... Ghoulies III: Ghoulies Go to College. This movie was so cheezy, it thought it was still in the 80s. Kevin McCarthy played an evil dean in it, and he was fun to watch.

JCB mostly did effects, with some stuff in Trancers, From Beyond, Bride of Re-Animator, Halloween 4, Dolls, and a bunch of other stuff. I remember him as Cracker Jack, the doomsayer in Adam Green's Hatchet 1 and 2. Every good slasher needs a doomsayer, and this one drank his own piss.

So it's a bummer to lose a guy like JCB. He's one of those horror/sfx nuts who seemed to love what he did.