Ok, this is more a few questions to discuss rather than a theory.

In Jane's flashbacks I noticed a few interesting things.

Check out the photo's in the comment section.

Firstly you'll notice that Haffner changes places on the couch when PJ walks the three Tyger Tyger people over to the wall.

Why would he do this? Maybe he knew where the explosion would be and knew he would be protected from the blast in that spot?

Secondly, McAllister appears to be holding something in his hand. A trigger perhaps?

What do you guys think?