[dforest]

He had no way of knowing that nobody would come up on that roof and he knew counter snipers were in place.

People said they saw him and he had a gun yet nobody stopped him before he started shooting.

They had pictures of Crooks taken earlier where you could see his face. That dead guy on the roof did not look like Crooks.

[EVO X]

He had no way of knowing that nobody would come up on that roof and he knew counter snipers were in place.

I think it is likely he probably considered it a kamikaze mission. Once he gets on the roof, he sees no snipers so it a go...

[Jeff Vader]

the dead guy on the roof had just had his face re-arranged by a 300 winmag

[mware]

I saw a photo of the assassins face after he was dead (matter of fact, saw it twice) His face was intact, partially coagulated blood from mouth, nose and ears. His mouth was partially open and it looked like his teeth were pushed out slightly. (Not sure if it was dental problem or result of gunfire.