I wanted to put my 2 cents in about the cell phones. Dad was at work possible has acess to a phone mom's phone is the one that was broke, they buy a new one and with baby being sick needs a phone to call someone ( her mum doc what ever) so keeps dads phone, and is in the process of taking numbers from her old phone to the new one. That is why there were 3 phones.
Her clothes she wore to bed ... or didnt.... When my kids were sick cold flu what ever at that age sometimes they had diaherria, I put them in pants/ shorts to sleep.. it made clean up easier as the poo didnt go everywhere as much. Whether the parental units did it or not... Honestly, does it TRUELY matter? If they did then most probably they will get caught. If they didnt do it then SOMEONE did. This lil one has more people out there then her parents who love her. Arguing over thier guilt when it is unknown is in someways mean. If Lisa grandma and grandpa or aunties and uncles read this they wont like it. Just send prayers she is found whole and ok. If she isnt Pray she is found for her siblings and parents and OTHER loved ones have closure NO MATTER WHO DID IT