3) I would like to add that perhaps thought should be given to the majority of the shootings happening around "oil" supplies...gas...hmm...now let's see, who has the oil, and who buys the oil.
There might be something to this..oil supplies, etc. However, it touched off something else when I read it: If by chance the sniper missed, and the bullet hit a gas pump - would it go KA-BOOM!??? or does that only happen in the movies? Also, unlike the most recent shootings, the first victims were doing other things (mowing the lawn, etc). Seems like the sniper discovered by chance the ease in picking out victims at the gas pumps.
Yes, I think that the only significance in the fact that some of the shootings occurred at gas stations is that the targets are so easy there.