9 déc. 2014 · James Niggemeyer prevented further deaths in night club rampage 10 years ago - but had to leave force The police officer who ended the murder rampage that killed Dimebag Darrell Abbott lost his career as a result of the aftermath. 10 juin 2005 · In a video released on June 3, a club security guard can be heard telling Niggemeyer he did what he had to do, but the officer said he was so numb at that point he doesn't recall anyone.