I walked away from the Dateline special wondering more about Bill McReynolds (Santa Bill).
Google seems to provide some interesting information about him and his wife. Now, this case has been talked about all over the internet and I honestly don't have a clue if any of this stuff is true so take this for what it is worth which is probably nothing.
Bill McReynolds talked for quite awhile at JBR funeral. He said some things that raised red flags for some and sent out the creep vibe to others. This was noted on Dateline. He had been in the Ramsey home many times. He was cleared because he had heart surgery in August and they didn't feel he would have been strong enough to commit the crime. He was strong enough to play Santa, though. He was also well enough to vacation in Spain with his wife less than a month later.
His own 9 y/o daughter and her friend were kidnapped on 12/26/74 (exactly 22 years to the day before JBR) and his daughter had to watch her friend get sexually abused.
Janet McReynolds was his wife. She wrote a play 20 years before JBR was murdered and two years after her daughter was kidnapped about a girl who was sexually abused in a basement and later died in a hospital. She was also a huge movie/TV buff and the ransom note seemed to have a number of Hollywood references.
All of that probably means absolutely nothing, but I read most of it on the internet so it must be true!