I haven't followed this case, and happened to catch the ID episode on Steven, and now am very interested.
It seems that the two things he was searching for in life were 1) a job; 2) a wife. And IMO, it is one of those (more likely a job) that brought him there.
I personally was glad they addressed the lack of connection to the Susan Powell case, not only so that is "out there" and dealt with in Steven's case, but for Susan as well.
I need to read the previous threads but have read through the timeline.
I wondered why Steven didn't park in front of his destination but instead parked at the end of the cul-de-sac. Is there no on-street parking in the ---neighborhood?
Welcome! I've seen you around WS, but not here.
I don't have a theory on the parking place, but whether someone told him to park there, or if he somehow found it himself:
---It's one of only two dead-ends in all of Sun City Anthem, that doesn't have homes around it.
---Parking there means the car isn't tied to someone's home.
---On-street parking for longer than "quick visits" isn't permitted.
---Parking there means it unlikely someone will complain. It took what, four days?
---It looks like a good spot away from security cameras
If you allow a slight chance that *someone else* parked the car that day, then it removes the "how the (blank) did he find THAT spot" problem. In that case, the car-parker would know about the parking spot (maybe he worked construction when those homes were built????) but maybe not be aware of the security cameras on the nearest home.