seen a case like this where you had an active shooter, in this case a child, and then subsequent to that, the parents were charged. so this is going to be new. and so therefore i would probably only guess that through this process where some trial and error, i think there were some things to be learned here. but i think their efforts to go that step, to take that step in charging these parents is something new, and unique. and i think is personally, as a law man, long overdue. we'll see as time goes forward. >> sarah, building off of what cedric said, because these involuntary manslaughter charges against the parents of the suspect are so rare in a school shooting. what's the burden of proof here and how strong of a case do you think prosecutors have from what we know so far? >> you know, lindsey, typically criminal cases involve an act, not an omission. but there are plenty of cases that involve omissions. for example, child neglect