I've had a few theories and went back and noted them. Here they are with my current theory last:
Theories
10-9
The theory is basically that somehow negligence caused the death of baby Lisa on Sunday night after the party, or perhaps the next day (the last day the parents saw her.) The mother and father then plotted a kidnapping story, perhaps afraid they would lose custody of their other two kids if the truth were to be revealed. They had to hide the phones because of that alleged 2:38 phone call between each other (MOO) confirming the baby had been disposed of at the dumpster and set to flames.
10-11
Here is my theory, subject to modification as facts unroll:
1. It was an accidental death.
a. Most likely way I come up with is Lisa was coughing Sunday night after the birthday party, and the mother gave her adult cough syrup. The baby was accidentally overdosed. In the morning she was found unquestionably dead.
2. The motive for staging a kidnap appears to be to avoid losing custody of the boys, namely Jeremy's son.
a. This is the best motive I can come up with for doing something crazy like staging an abduction/kidnapping like this.
b. I have tried in earnest to see what custody issues may exist with the boys, and have not been able to fully substantiate what may be going on there, but it appears that there may indeed be a lingering battle for custody of his son. Call it speculation for now as I have no link to provide for this.
3. The staging of the kidnapping involved not just the couple, but a third person.
a. Jeremy worked the night shift IMO so he would have an alibi.
b. Debbie needed someone to help get rid of the baby's clothes with vomit on them that would reveal she was poisoned. She also needed someone to dispose of the baby.
c. I believe she called in a favor from her brother/cousin/uncle (not sure) SN. I would like to elaborate on why I chose him of her relatives, but until he is (if he is) named a POI, it would not conform with forum rules.
d. The man at the store will be found to have been her brother. He lives 5 miles away and the store is on the google map path between the houses.
e. The accomplice burned the baby's clothes, etc. in that dumpster at 2:30 in the morning.
f. He then went back to the house and took the dead baby as plotted with DB.
g. Where he went with the body is anyone's guess, but my theory that he buried it in his backyard is based on where I think DB would want her daughter buried. Whether or not the accomplice was ok with this is not easy to determine, but I think he has made (errr - too much info.)
4. In this theory, DB, JI and the accomplice are all in on it.
10-12
I would like to know any theories on motive for murder by DB. The accidental death theory no longer feels valid to me.
10-13
I think I could sum up my current thoughts on this case as Casey Anthony 2.0
10-16
Yes, she did it, it was premeditated murder, it was done for money, and we are seeing a copy-cat of Casey Anthony. The accomplice will also be a lover.
10-17
The most major change in my thinking from the events of today is that I am pretty certain Jeremy was an accomplice and knows everything.
THEORY 10-18
1. This was premeditated murder, with a staged kidnapping.
2. Motive was financial and possibly to pave the way to getting out of relationship with JI and running off with a lover.
3. This crime is way out of JI's league, so I think he comes in after the fact.
4. Time of death was earlier than the timeline given for when Lisa was last seen.
5. As soon as JI leaves for work at 5:20, Debbie poisions baby.
6. Baby is removed from house at night, and there appears to have been an accomplice to help do this. He sets the dumpster fire to burn the clothes. He then disposes of the baby in the river. I believe this accomplice will be a family member, OR AN UNKNOWN LOVER, and has a criminal record.
7. Jeremy comes home to no baby, calls 911.
8. Later, Debbie tells him of a story of accidental overdose, her panic, etc. and sells him on covering this up with her.