The truth about Che

The video I watched on the Greg Beck's show was very interesting. I do not have type of background information on who the Che person is. I have never learned about him in history class, however he sounds like a horrible man. Beck stated that he put gay males in jail just because they were gay. I do not understand why he would do such a thing. Greg Beck really made the man out to be a monster. He was trying to get the point across that Che was not what he seemed, and the movie directors made him out to be something he was not. But I feel like I can not speak that much about the clip because I have no clue who Che is....