ABC News Correspondent Jim Ryan talks about how the man who fell to his death while riding a roller coaster at Six Flags Over Georgia has been identified as a schoolteacher from Atlanta. The 42-year-old somehow slipped from his seat restraints as he rode the Goliath roller coaster with his son. Weeks before that tragedy, Six Flags Magic Mountain announced that it was closing its X2 coaster after scores of guests reported brain injuries. Those incidents and others raise concerns about the safety of amusement park rides in general.