Science Museum Oklahoma officials have canceled Thursday's lecture by forensic anthropologist Clyde Snow because of inclement weather.Snow, the Norman pathologist known for forensic investigations related to Nazi war criminal Josef Mengele, mass murderer John Wayne Gacey and Saddam Hussein, wasn't able to fly from Chicago, where he is visiting, to Oklahoma City due to "extreme snow conditions," said Bret Mahoney, museum academic networking coordinator.Museum officials hope to reschedule the event later."It really is disappointing," Mahoney said in a news release.Read more on NewsOK.com