The felony murder option has been abused mightily over the years but it does allow participants in an act to be held accountable for an event even if they didn't pull the trigger. It looks like some aspect of it will apply here for the parents who viewed the lead-up to the whole episode in reckless disregard.

They were arraigned this morning and as a MSNBC conversation pointed out yesterday, they will probably not be able to get bail bonds since they've already proven they're a flight risk.