He probably shouldn't have wired the detonator to a cell phone. US Army calling...boom!
Abu Ayoub Al Masri called his new assistant Mansour Sulayman Mansour Khalifi Al Mashhadani on his cell phone for a progress report. “Hey old buddy Mashhadani, how are things going, Mashhadani, Mashhadani, are you there? Dang cell phone cut me off again.”