Human mutilation cases?

So I watched Knapps new series investigate alien on Netflix. Overall I thought it was good and very well done. Cattle mutilation cases are baffling to say the least. While I watched, I wondered why he didn't take this opportunity to talk about human mutilation cases. Some time ago now I came across a link to a page called Bad Aliens. Could these actually be real cases? I don't know. I thought it was interesting and I wanted to get some people's opinions on these types of things, that aren't talked about as much. Maybe this could be some of the super deep dark stuff people have said we just can't handle. I'm not even sure if these are real. I just want to hear what you have to say about this