 During the Nairobi bombing, he had initially sat in the passenger seat of the Toyota Dyna, and threw a stun grenade at embassy guards before exiting the vehicle which the driver detonated.Osama bin Laden later offered the explanation that it had been his intention to leap out and shoot the guards to clear a path for the truck, but that he had left his pistol in the truck and subsequently ran off.Kenyan doctors attending to al-Owhali were suspicious of his role in the event, and noted that his injuries showed he had his back to the explosion and suggested he may have been running from the scene.