You're right. There was more than a milkshake. But I think saying "everything fit" is too vague.
Some things were missing:
•Past sexual crimes
DM claims that police claim he has a history of violent acts, one act in particular. Unknown if sexual.
•Past complaints from prostitutes.
He showed up at one prostitute's house. She had no idea how she knew where she lived but she lived at home with her parents and they had no idea that she was a worker.
When police visited the brothels, many immediately knew who he was and reported him as being extremely creepy.
•Carpet fibers on the girls' clothes or bodies matching LW's car
As per the above article, would be most unlikely to be present after a week let alone 13 months.
•LW getting the girls in his car
This is the million dollar question. To my knowledge there is no known circumstances of LW askig other women to get into his car(besides the decoys)
•LW being enough of a mastermind to pull off the abductions, murders, disposals, and leave almost no evidence behind
If what DM says is true, no doubt. Apparently was calm, never flustered, and often paused for up to 30 seconds before answering questions.
Regarding the missing tool, that is interesting. I don't see a link, so...? I'm willing to go with this possibility for the sake of discussion. But it totally depends on the tool. A bat would not be as conclusive as a handsaw.
I can't confirm this to be correct with absolute certainty but the tool wasn't quite conclusive enough for a forensics professional to sign off on it that the missing took definitely cuased the injury.
Apparently they were a cat-hair away from charging him.
I get your point about preferring not to have sex with his victims or with prostitutes. But he would not try to substitute a hand job. He would need something else (would not necessarily have to have sex with the prostitute).
He could have masturbated at the scene etc.
I thought a psychologist said LW could not have committed the murders. Let me get back to that later...
His shrink that he used in the aftermath said that. But the shrinks who watched the police tapes said it was typical for a person of innocence to protest their innocence. What did our mate Lance do? None of that. He never complained once. A normal person under intense questioning will snap and say stuff like "**** off. I didn't do it. It's impossible for you to have any evidence because there isn't any. I'm leaving because you can't hold me because you have no evidence", or "no I'm not coming down to the station you bacon ****. I didn't do it so **** off and solve the crime because while you're wasting time talking to me there's a killer out there".
The 3rd party psychologist who was an expert in such crimes felt he was a certainty. Allegedly.