There is a picture of him out there standing behind the spectators where he (white hat) dropped the second bomb. He stands a good 4-6 inches above most everyone else in the picture. White hat could easily be 6’1 or 6’2.
We’ll see how it plays out. If he is one of the killers, it would just too much resemble a movie script. But sometimes reality does that, sometimes reality mimics art.
Tripathi DOES look a lot like #2.