The picture of the guy running away tells you nothing - running away was a perfectly logical thing to do. Also, you’ll notice there are other people running away. And a remote controlled or timing device, but he was so close that it blew his pants off?
There is nothing suspicious about the man in those pictures. That’s not the suspect.
the only think I’ll say about the guy running away is that it seems he started to run early....meaning that everyone else is stunned/paralyzed yet he is running....perhaps if this is the guy, he set the bomb ticking and then had 5 secs to move away from it....just saying....
Agreed. This guy looks more likely: