i saw part of this movie on HBO in the early 90’s. It was early in the morning on a Christmas Eve and the movie that came on right after was Witches with Sngelics Huston if that helps. Anyways, the movie was in color and one of the scenes involved two men in a struggle. The setting looked like an abandoned hospital. I believe the protagonist in the struggle was black and the antagonist was white. The antagonist ended up taking what looked like a small electric saw or cast saw to the back of the other guys head and he began to spill blood from his mouth. Another scene was a guy rescuing a girl from this abandoned hospital. This was all towards the end of the movie.