I might be totally wrong but something does not smell right with this story. He just happened to spot his stolen car at 2:30AM in the middle of no where a good three towns away from where it was stolen?
Something tells me when more facts come out we will find out there was a previous relationship between the shooter and those who were shot (I’m not going to call them victims here as that is not what the story so far indicates). I’m guessing something like he owed them drugs/money etc. so they stole his car in an effort to try and get him to pay.
You're right, I've been phrasing it we don't know all the information, but a lot is missing.