Bingo here IMO. This is also why I think LE is taunting with the "messy" statements. The killer enjoyed the planning and execution. If you've ever watched someone prep for an EMT shift, ER shift, SAR event, etc., that's the degree of planning and organization to which I'm referring. I think to them it may be like mise en place for a proficient baker, for ex. ICBW, probably am, but interesting that this profiler who has only info from media, too, has stated so much of this. Also very scary. In the cases of the other two 13th murders linked above in OR and WA, both on Friday or a weekend, maybe the person has a day job and the money to pursue their interests in their off times.