Police announced late Saturday that Phiengchai Sisouvanh Synhavong, 23, of Kennewick, was booked into Benton County jail for investigation of first-degree murder.

The six flags decapitated and decapitation continues to boil over, The Superman Tower of Power, featured at Louisville’s Six Flags Kentucky Kingdom, it was shut down shortly after Saturday’s accident, the teenager was decapitated by the roller coaste