Pierson, Frank and others in “522666”

You want to bring him in because he was a hero... twice?

That's him, I know it.

Frank... after Centennial Park, there is no way that I could bring this guy in without more evidence.

The bomber has expert knowledge in explosive devices. He knew exactly what and how much to use to create the effect he wants. There were two explosions today... neither one of which matched the lethal intensity of The Queen's Arms bombing.

It was lethal enough to kill five people.

But not so destructive a person couldn't survive inside of it. Especially if he knew when and how the force would dissipate. Raymond Dees is a maintenance worker in that building. He has the knowledge and the opportunity to place those devices where it would best suit him. He watched the first bombing from a distance. He believed that watching the chaos which he created would be the thrill, but he needed more... to smell it, to touch it, to participate in the aftermath, but that wasn't enough either.

So, today he placed himself within his created chaos.

It wasn't enough to watch others. He needed to watch himself. A real star.

Are you saying he killed 18 people so he could be on Good Morning America?

Killing wasn't the motive. It was a by-product of his obsession.