Well, no matter who was behind it, or how poorly it was planned, the result is still the same. There were over 50 emergency vehicles, we got evac'd to four separate sites outside the hotel, 19 people were hospitalized and one of those was in a bad condition (but has since been released) due to previous exposure in Iraq/Afghanistan.
Whoever did this is going to get a nice long trip to jail, and probably have to pay some massive restitution. We had the DHS, FBI, Hazmat FBI, Hazmat DHS, O'Hare police, TSA (as there WERE pilots and operating crew in this hotel and it is close to ORD) and a wide variety of other people take an interest in this, within hours of it happening at 1AM on a sleepy sunday morning.
I'd wager this story's not going away.