Yes Jennibee, almost too convenient. I've always believed that Suzie or Sherrill knew their abductor/s or they let someone in a police uniform in.
I don't know if the ex boyfriend was savvy enough to pull off "the perfect crime", but I feel he was the conduit to get them to open the door. I feel there were very dangerous and powerful people above the boyfriend who had a lot at stake if Suzie talked.
Sometimes better to be lucky then good . In this case with the crime scene destroyed , probably true .
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