Boston Mayor Marty Walsh has said those who died in the Boston bombings will "forever be remembered and honoured".
In a statement, he thanked the jurors and judiciary for their service to the community and the country.
He added: "I hope this verdict provides a small amount of closure to the survivors, families and all impacted by the violent and tragic events of the 2013 Boston marathon.
"We will forever remember and honour those who lost their lives and were affected by those senseless acts of violence in our city.
"Today, more than ever, we know that Boston is a city of hope, strength and resilience that can overcome any challenge."
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