Before being killed, Aiyana was burned by the incendiary flash-bang grenade hurled through the window of her home. A retired police officer and veteran of "hundreds of high-risk raids" criticized this piece of theatrical escalation in an interview with the Detroit News. "In my entire career, we've only used these [incendiary devices] in barricaded-gunmen situations as a diversionary tactic," commented the officer.
This wasn't a "barricaded-gunman" situation. Flinging a grenade into the home did nothing to unbalance the suspect, enhance the SWAT team's tactical advantage, or – most importantly – protect innocent citizens. But it must have looked really good on camera.