So much so that I doubt that was how it happened. Remember, Timothy McVeigh, with a whole Ryder truck and 4,000 lb. of explosives only managed to kill 168 people, while this thing murdered 170 Afghans plus 13 U.S. service members, for a total of 183 victims. Something more is going on here.
Tsk, tsk, tsk. The Ryder truck was packed with ammonia nitrate fertilizer and dynamite primers. AN is a very puny explosive.