Barbara said:
...and knowledge of their bedtime routines,
...and knowledge that the dog wasn't there
...and knowledge of the layout of the house
...and knowledge of their sleep habits, sexual routines
Oh hell, the Ramseys, when going out to the Whites, and then going around delivering gifts and visiting, didn't even know full well, their own plans and time frames for that night, yet the "intruder" had it down to a science?
Again, what motive would LHP's husband have for this. They were expecting to pick up a couple of thousand dollar check from Patsy. Why would he do that before getting it? He was a big man by all accounts and a drunkard. Does he fit the profile of a stealth, climb through the basement window, do all those things that this crime entailed, while drunk and overweight, without a sound, and without a trace??
You can't really believe that is a viable scenario can you?
It's one scenario I periodically consider. But it's not the only one I consider.
1. I'm not saying Merv did this himself. I think he could have provided the information and key needed to someone else. Why take a $2,000 loan when you can have a quick $59,000 payday. Unfortunately, something went wrong and JonBenet died.
2. Merv would know the dog spent most of it's time at the Barnhills.
3. The layout of the house could be explored while the Ramseys were at the White's. Barnhill saw a male approaching the house around the time the Ramseys left for the Whites. That suggests someone was watchiing and waiting for them to leave. Knowing when they would return wasn't vital. If he knew they were going to a dinner then he knew he had at least a couple hours before needing to lay low.
4. He could assume that they sleep at night. What other habit does he need to know? Wait 'til the house is quiet, wait a little more and assume they are asleep. Sexual habits? He could probably safely conclude that Patsy and John didn't usually have a go at it on the dining room table, particularly the night before a trip. What else would he need to know?
People break into homes all the time while the owners sleep. There is always some risk that the owner will get up, or be doing something unexpected. But still, people continue to break into homes.
I think it's possible this was a person who felt the world owes him, heard about John Ramsey's bonus from Merv, decided it wasn't fair that the Ramseys of the world get all the breaks, also felt asking for the bonus amount wasn't like "real" stealing since it was, after all, a bonus, and hatched this plan. Unfortunately something went terribly wrong and JonBenet was killed.
Although I do not think Mervin personally did this, as I said, I find it very curious he asked about her being strangled. Why would he want to know at all, let alone ask about a method of killing that is not particularly common for children? While I don't think Mervin was the hands-on person I would remind you that Westerfield, also a large man, managed, while drunk, to enter and leave the van Dam house without knowing anything about the habits, pets and schedules of the people there and didn't leave any known traces of himself. Bundy was also usually drunk when he killed. How many houses did he enter without knowing the habits of the residents?
My thoughts about what happened at the end of this scenario are less clear than the beginning. Perhaps she screamed and he panicked and killed her in frustration at having failed again. Perhaps he thought she might recognize him. Perhaps she didn't scream and the head blow was only supposed to knock her out but he hit her too hard. Perhaps the garrotte was a control device and she screamed and he hit her in the head, thought he might have killed her, and strangled her just to be sure she couldn't recover. Perhaps the sexual assault was merely an attempt to head the police off into the world of pedophiles or perhaps it was anger in general, directed at JonBenet.
If any one theory fit perfectly with no unanswered questions we wouldn't be here. But I would rather see no one in jail for this crime than 25 years from now see another name go on the exonerated list of Sheck's Innocence Project.