Four people were arrested after kidnapping, beating and abusing a man with mental health problems. In a video posted on Facebook, obscenities about President-elect Donald Trump were shouted while the three people punched, slapped, stomped on the victim's head. At one point, the 18-year-old man's hair and scalp were cut with a knife.The unidentified man was bound at the neck and wrist with his mouth taped shut. Three 18-years-olds and a 24-year-old are charged with hate crimes, aggravated kidnapping, aggravated battery and aggravated unlawful restraint. The assult took place in Chicago.