Roger Bergendorff thought exposed to ricin in his hotel room . Bergendorff , an artist who neighbors said had lived in his cousin 's basement before moving to Las Vegas , was exposed to the poison in a Las Vegas extended-stay hotel , a law enforcement official said . Roger , in coma since February , awake and being questioned . Ricin is something that can be made from or after processing castor oil .
Roger Bergendorff thought exposed to ricin in his hotel room . Roger , in coma since February , awake and being questioned . Ricin is something that can be made from or after processing castor oil .