Or Casey threw the child in the trunk so she could party. The baby asphyxiated and died. She then tried to dispose of the baby and then...GET THIS....got away with it.I'm gonna throw a thought out there... kinda crazy but considering this case it fits right in.
Grampa actually was molesting his own children. Then he carried this deviant behavior over to his grand daughter. She is getting to the age where communication becomes possible. Grandpa decides he cant risk it and either drowns her or whatever. Being an ex cop he knows what to do to clean things up and leave no clues behind. Says nothing and hopes it will forever be a missing child case. I mean before he knew his grand daughter was dead he tries to kill himself. Tells his mistress things that could implicate him. Denys knowing how he buried 4 or 5 family pets. Which started when Casey was a small child and exactly resembles how Kaley was found. Maybe the duct tape migrated from the bag to the body during decomposition. Maybe the tape was used to hold an already decomposed body together to be transported more than once.
Are we supposed to believe someone who told such stupid end easily disprovable lies (Casey) could completely clean a crime up to the point that the best labs in the country couldnt find any forensic evidence? I dont see it....
Something is definitely wrong but there is no proof to pin it to 1 person.
Just sayin.
I always thought it was probably something like that. I think the prosecution might have been able to get a conviction if they charged her with manslaughter and went with a story like this.