Still strange, the bombs explode after ~2 hours that the first runners finished. It looks amateurish for me. It looks like the bomber(s) (if it isn't an accident anyway ) didn't want to catch a big amount of attention by killing as much as people as possible. Still I think it's a lone wolf (like Anders Behring Breivik or the Unabomber) or a small group of freaks (like conservative tea party extremists or a small group of wannabe Al-Qaida terrorists ).
Run for your Life~! Still strange, the bombs explode after ~2 hours that the first runners finished
