Amy Pitzen may have had a motive to harm Timothy, but up to this point I haven't heard it.
Respectfully snipped. If I may respectfully ask. If Amy had planned to take her own life, is there a reason you believe she may not have chosen to end her sons life in order to spare him the emotional pain of losing his mother, by his mothers choice?
Losing a parent is extremely difficult for a young child, by either accident or illness. It may have been possible Timmy's father and family could have kept the manner of his mothers death from him for a period of time, but certainly not indefinately.
Amy was clearly suffering terribly if she chose to take her own life. In her state of mind, while suicide is not comprehendable to most of us, I can imagine her believing she was saving Timmy from the same kind of emotional pain and mental illness she was suffering from. Especially if there is a history of mental illness within the family which has not been made public. While I am no expert, I think more often than not, mental illness does run in families. I can also see her wishing to keep her family from knowing she was capable of harming Timmy, thus planning well in advance a place to hide him.
If she had done something along the lines of killing each of them together, say by driving her SUV into a river or lake, the possiblity exists both would be found. She may have realized prior to making her decison accident investigators could have reconstructed the accident scene indicating there was no mechanical reason for such an accident. Perhaps that ruled out that option for her.
The one thing we can say for certain, is the ground was still frozen when she made her February and March trips, so it is unlikely she prepared a grave which would have required digging for him at that time.
As horrible as the above is to consider, I think it does need to be considered. Especially knowing there is such a wide range of area's she could have traveled many of which are very rural and probably not inhabited for enormous stretches.
I do pray he is found, hopefully safe, but I think as time goes on the chances of that become slimmer.
jmvho