They didn’t deserve what happened to them. But they’d be alive if they heeded his simple request not to dump their snow on his property and kept to themselves. The crazy man didn’t visit them. They visited him and drew aces and eights for their trouble.
I'm about the most benign neighbor you can have, I keep my property up, I promply shovel snow and mow the lawn, I don't have parties often and when I do they are in the daytime typically and never loud. Even if a neighbor is letting their property fall apart I may grumble under my breath but keep my mouth shut. But crazy folk will find something to get pissed about, no matter how hard you try to be the model neighbor.
I never in furstration put a shovel full of snow on their walk (GASP!) but our relationship was far from cordial and I place 100% of the blame on a control freak nut next door. I didn't get shot but if I had it's no comfort to know that Freepers would watch the incident and say I had it coming.