[Tax-chick]

I think a 4-year-old could pick up a brick and drop it ... I haven't paid enough attention to see whether that's a possibility. My 4 and 2 yo girls can both pick up a brick (and drop it on their own feet!).

Not that I think it's a likely scenario ... I bet on the mother or one of the older children.

[Valpal1]

Peterson said she has received the results of forensic tests scrutinizing bite marks on the infant's body. She won't say if the marks exclude the 4-year-old girl. She said the results will be presented to the grand jury.

Seems like the authorities probably know who is responsible. If those marks were from an adult they'd have busted them already. Very sad story all around.

[Irene Adler]

"I think a 4-year-old could pick up a brick and drop it ..."

Yes, that is the only scenario I can envision; baby on blanket on the floor, and brick (held in both hands) dropped from above. That would have been physically possible. I wonder how a loose brick got in the house, though. Kinda strange, no? Well, maybe using it for a doorstop or something.