Mosab observed firsthand the craziness of the cycle of violence. Mosab began to question who his real enemies were: the Hamas leaders who tortured their fellow Palestinian prisoners, or the Shin Bet, who arrested and imprisoned him. Over the 16 months that Mosab was in prison, the answer became clear, and this persuaded Mosab to go undercover for the Shin Bet. Gonen, whose code name was "Captain Loai," became Mosab's handler. Mosab's reports led to the arrests of several high-ranking Palestinian figures. As we worked together to prevent the deaths of hundreds of Israelis and Palestinians, the two of us became friends.