Help me find this movie!
 

Hi, does anyone know what movie this clip I remember seeing is from? I saw it on my dad's (long gone) computer around 13 years ago, but a friend of mine saw it on a VHS tape sometime in the late 80s/early 90s so it's from around that time or earlier (i asked my dad abt the vid, it's definitely old footage).

So it starts with a buzzsaw, this is the moment I remember the most since the sound it made was super loud and high pitched, very scary for me as a kid. It cuts to a dead, bloody guy on a stretcher with a bullet wound on his head. I'm not sure if there was doctors rolling him in or the camera man was walking up to him, that part is really fuzzy. I do remember his blanket was completely blood soaked and I'm thinking it cut to an autopsy scene afterwards but I'm not sure at all.

It might've been from a Faces of Death type video (it's not FoD as far as I know, but it does give off the same vibe) according to my friend but he's not really sure.
Thanks in advance for all who help!