 He has been described as the trainer of the "muscle" hijackers at the al-Matar complex and training them to disarm air marshals, physical fitness and basic English phrases.He also prepared them for truck
bombing, blowing up buildings, and hijacking trains for operational security, so they wouldn't be able to reveal their target if they were captured.At al-Faruq camp, he had each hijacker butcher a sheep and a camel with a Swiss army knife to prepare them for using their knives during the hijackings.