GLASS, MR

Mr Glass was a security officer for the Gauntlet, a cabal of rich and powerful mutants who plundered the multiverse. When several of their members started to get killed off Nate Grey started to try and help them, unaware of quite how nefarious they really were. Mr Glass got on Nate's bad side quite quickly and he killed him after reading his mind and finding out he had killed 67 people in the past decade.