If I shot or killed someone?

I just watched the part of bowling for columbine where michael () moore got kmart to stop selling ammo. Well, I make my own ammo. If i went on a killing spree, would michael moore blame the tire shops for giving me lead, the range for giving me used br, the thrift store for selling me my dutch oven, spoon, ladle and ingot mold, my parents for giving me the turkey fryer or walmart for filling my propane tank? Or do you think he would blame me? the one responsible?