I just don't think her mother or grandmother are involved. I'm leaning towards a neighbor, or a boyfriend, especially if she went to see an elderly neighbor who was not home, and she was alone. I'm not seeing a mother, who cares enough to meet her first grader on time at the bus and walk her home, to kill her less than an hour later. That makes 0 sense to me. Parental involvement is more of "I put her to bed and when I went to check on her 6, 8, 12 hours later she was gone" or "they went to play at a friend's house and didn't come home 4 hours later" (talking about you TS!). We know for a fact she was at home by like 3:05 based on photo evidence and witnesses. So she was noticed missing 40 to 45 minutes later, and the police called at 5. I don't see parental involvement at all with that timeline. Someone saw a small 6 year old alone and pounced.