More roller coasters shut down as authorities investigate fatal fall at Georgia amusement park

ATLANTA (AP) — A growing number of amusement parks have shut down roller coasters as police and state regulators investigate what caused a man to fall out of his seat and plummet to his death at a Georgia park.Sea World Orlando in Florida and La Ronde theme park in Montreal, Canada, confirmed on Thursday they had temporarily closed rides, bringing the total number of roller coasters halted to 12.Police and a state regulatory agency are investigating what caused Hassan Jihad Ibn Kariem, a 42-year-old school employee from Atlanta, to fall from the Goliath coaster at Six Flags Over Georgia on Monday. Witnesses described seeing him ejected from the coaster; some people who rode the Goliath before him raised concerns about its restraints.Ten of the roller coasters taken out of service have the same manufacturer and a similar restraint system as the Goliath at Six Flags.Mom says her son's restraint didn't work properlyErica Billups said her son and daughter rode Goliath about an hour before