RIP Aitzaz, I wish I could have read about you in better circumstances, but heroes are heroes, dead or alive. I hope your journey to the afterlife brings you nothing but peace and happiness.
1. Arrived to school late and through a random series of events was alerted to the presence of and confronted (presumably not physically) the bomber and died
2. Was going to school (presumably not late) and proactively recognized and physically engaged the bomber and died
2. Was going to school (presumably not late) and proactively recognized and physically engaged the bomber and died