[revjen45]

IIRC the biggest mass murder in CONUS was perpetrated with $.87 worth of gasoline (that's at older prices of course). The perp started a fire at the only entrance to a dance club and dozens died.

If you ever doubt the deadliness of a bladed weapon watch the police training video "Surviving edged weapons." Also check out Mike Inay's escrima training video. Up close a well wielded knife is frighteningly effective. I took escrima lessons for a few months and have no doubts that one could inflict serious harm, especially by surprise. A "sucker punch" with a sharp knife can make a wound that will be fatal in the time taken for exanguination. The police treat any stab wound like a murder investigation, because the victim can and often does die later.