I saw this one coming..

[Flatline]

Pretty sure it has been that way since OKC.

You can still get it pretty easy, we use it in the lab all the time (you don't need special permits to order it).

they haven't even released the accelerant used in Boston yet... Talk about not wasting a tragedy.

I bet it will be some BPE derivative. That stuff looked pretty dirty and low velocity, and lets be honest the nut jobs who do this stuff probably aren't very good at chemistry.