@abc2020: Detective Kim Mager spent 33 hours conversing with serial killer Shawn Grate. She says she received information that she may have been one of his next targets, though no additional charges were brought against Grate. In a later interview, Grate confessed to her that his violent urges were still present - and growing. ABC News Correspondent John Quiñones speaks with the detective on her unique bond with the serial killer for the all-new 20/20 'Meet The Other Me’ premiering TONIGHT at 9/8c on @ABC.