that any kind of action on his part, whether it was bending of the head a rotation or a flexion or an extension of the head, any of those types of activities would have severed the cord even further. so i think it was a two-step situation. i think the initial injury to the vertebrae happened before he entered the van and the severance of the cord was exacerbated and continued in the van. that would explain, i think, the observations that we've all made. >> wow. dr. lawrence kobilinsky thank you for your time. much more of today's breaking news ahead. we're expecting a police briefing just a few minutes away. stay with us.