Nedim Yasar produced a memoir about leaving a life of crime behind—and was killed as he left the launch for that book. The 31-year-old ex-gangster was shot twice as he left the event in Copenhagen on Monday, a day before Roots: A Gangster's Way Out was released, the BBC reports. Yasar, who left the infamous Los Guerreros drug gang in 2012 when he learned he was going to become a father, was a radio host and often spoke about his life experiences, reports Reuters. The gunman fled on foot and has not been apprehended. Soren Paulson, Denmark's justice minister, described the slaying as "sad and infinitely meaningless." (More Denmark stories.)