The Texas tower shooter used a bolt action but I forget how many he killed.
Whitman had a sawed-off 12 ga shotgun, a Remington 700 6mm bolt-action hunting rifle, a .35 caliber pump rifle, a .30 caliber carbine M1 (one of your alleged "assault weapons"), a 9mm Luger pistol, a Galesi-Brescia .25-caliber pistol, a Smith & Wesson M19 .357 Magnum revolver and over 700 rounds of ammunition. He also packed food, coffee, vitamins, Dexedrine, Excedrin, earplugs, jugs of water, matches, lighter fluid, rope, binoculars, a machete, three knives, a transistor radio, toilet paper, a razor and a bottle of deodorant.
He was also a Marine...and all Marines are trained to be basic riflemen. You see the damage one of us did when pushed over the edge...why do you folks insist on pushing tens of thousands of us towards insanity with your own insane attempts to infringe upon our inherent human rights? Might want to give that some thought.