A Georgia amusement park where a man fell to his death from a roller coaster is set to reopen amid a growing safety probe of roller coasters made by the same manufacturer. At least two theme parks not owned by Six Flags confirmed Thursday they also have temporarily shut down roller coasters built by the same manufacturer as Goliath in Georgia. The manufacturer, Bolliger & Mabillard, declined to answer questions about the shutdowns. People who visited the Georgia park have raised concerns about the Goliath coaster's restraints.