Nothing I have read about the motives and plans of the Tsarnaev brothers regarding their involvement in the bombing in Boston makes any sense to me. If they are guilty, then they were as stupid as Beavis and Butthead.
Points brought up in this article from Globalresearch.org point out so many inconsistencies that it is just beyond belief that some of the official stories we are being given are true. Not all of the information in this article is accurate either. Even so, the questions raised about the US government involvement in Tamerlan’s life before the bombing are worth answering.
And then there is the cartoon ending where, after an incredible number of bullets are sent his way, Dzhokhar gets out of the boat alive. Keep in mind, there was no weapon ever found in/near that boat that Dzhokhar could have used, and all the gunfire is from the police side of things. According to the blaze here; http://www.theblaze.com/stories/2013/04/25/authorities-clarify-key-details-in-chaotic-shootout-and-capture-of-boston-bombing-suspect/