Friends of suspected Boston Marathon bomber express shock

Many school and neighborhood friends of Boston marathon bombing suspect Dzhokar Tsarnaev have come out to say he was normal, friendly boy who never showed signs of aggression or anger.
One friend said he felt "complete shock" and that this morning friends were trying to confirm via social media that the pictures of Dzhokar being displayed on the news matched up with their friend. 
None of the friends could recall any acts of aggression or signs that Dzhokar was disturbed, and none could remember any comments from Dzhokar that could be describe as Islamist or anti-American.
Police confirmed that the search for Dzhokar continues to be on-going, as Watertown Massachusetts remained on lock down while police and FBI teams patrolled the streets in a massive man hunt.