I have been recently digging in this case.
On one hand, having seen police technique up close, they manipulate people into confessing, fake evidence, and outright lie at times.
On the other hand many truly guilty people exploit things like the Innocence Project and others to get away with murder.
She has some compelling evidence on her side that it was an accident, but she is also not the saint many try to portray her as. I don’t have a strong opinion on the case, but would support a pause for more review.
I'm a strong death penalty supporter, but I don't see enough evidence to justify capital punishment in this case. The "mother" appears to be drug-addled trash, and if she did not murder the child she is at least indirectly responsible for her death. But I like more evidence in a death penalty case. Nobody actually saw her beat the child, and it is possible that the child did fall down the stairs (or was thrown). She belongs in jail, but I don't know that I would vote for the death penalty.
The quicker you close a case the faster you can get back to coffee and doughnuts and “Starsky & Hutch”. Guilt doesn’t enter in to it. Just pick family member or the most convenient person and build a case.