OKAY!
Because I have absolutely NO life I can watch Criminal Minds obsessively.

As we all know in the last episode each member of the team got into a different black van. One of which exploded.
It was horrible and I cannot wait another month for the next new episode.
I think I have figured it out.
Watching the van explode in front of it on the side street you see a large greenishy pole with a right turn only sign or no right turn sign.

Emily was parked outside the hospital with no green poles. So that's a no, besides she just got here last season.

Rossi is also a no because he has only been here one season, not even and they can't re-replace the director again.

Not Garcia because she just got shot this season, and dude there is no BAU without Garcia.

This leaves agent Hotchner, Dr. Spencer reid, who off the set has had loads of problems, plus there was a greenish pole outside his van!, and JJ. It could be JJ because nothing has happened to her character, although it was revealed that she was pregnant.

Holy jebus, I feel lame.