Despite the fact that this film states "Based on the novels 'The Howling I, II, and III' written by Gary Brandner", this film is in no way based on any of those novels, and is a sequel to the earlier Howling films in name only.
Everyone assumes Ray is dead long before his body is found. It's easy to jump to conclusions when all the other missing people turn up dead, but it's strange that no one wondered if Ray might have killed them.
During most of the outdoor shots of the castle during the blizzard, strong winds can be heard whistling about, but the snow is falling nearly vertically.