10 Real Serial Killers Who’ll Give You Nightmares [VIDEO]

We've all heard stories of serial killers and some of the most unbelievable acts that they commit but after hearing these stories we usually go on with our day. I have a feeling if you watch this video, these horrific facts are going to stick with you all day and most likely will actually give you nightmares tonight. It's hard to stomach what these monsters actually did to men, women and children.