For me, this was a major sleuthing FAIL.
He was NOT the webslinging superhero we all looked into (due to his FB connections with the first three victims).
He was NOT the second or third person I looked into that had ties to this neighborhood.
This just goes to show you how thankful we all should be to Websleuths "must be named in MSM article" to post here. If we had posted this person all over FB rumor sites or elsewhere, this person's life would be upside down.
The bus map posted earlier -- the address he was booked with is west of SH. If he took in the purple line to transfer at 9, it would lead him to that corner of the first shooting. But the 9 doesn't lead down to McDonald's, the 12 would. So taking that route wouldn't be the most direct. IMO, he probably just turned at that neighborhood, parked, and walked, but that red car would stick out to the neighbors...