By Hunter Hodies Rex Chapman made a horrendous mistake on live television about Pete Gillen. Chapman made the mistake of thinking that Gillen was dead when he is in fact very much alive. He was apparently thinking of Skip Prosser, who passed away in 2007. Gillen is currently a basketball analyst for CBS after coaching both Providence and Virginia, along with Xavier. Chapman was talking about Gillen after Providence took down Richmond on Saturday, 79-51. It sent the Friars to the Sweet 16 for the first time since 1997 when they reached the Elite Eight. Gillen coached that 1997 team that was led…