Here's what survivors of the Boston Marathon bombing have to say about Dzokhar Tsarnaev's death sentence

Boston marathon bomber Dzhokhar Tsarnaev was sentenced to death on Friday for his role in the 2013 attack that killed three and left 264 injured.

Tsarnaev was found guilty on all 30 criminal counts against him, including the murder of the MIT officer who was shot during the ensuing manhunt, even though it was never determined whether Tsarnaev or his older brother Tamerlan killed him.

The verdict of death by lethal injection brought mixed reactions for survivors and the families of victims. Some were elated:

The parents of 8-year-old Martin Richard, the tragedy’s youngest victim, have previously publicly urged authorities not to consider the death penalty in the case.

We understand all too well the heinousness and brutality of the crimes committed. We were there. We lived it. The defendant murdered our 8-year-old son, maimed our 7-year-old daughter, and stole part of our soul. We know that the government has its reasons for seeking the death penalty, but the continued pursuit of that punishment could bring years of appeals and prolong reliving the most painful day of our lives.

• Bill and Denise Richards in the Boston Globe

Loretta Lynch, the US Attorney General, said in a statement she supported the verdict.

The ultimate penalty is a fitting punishment for this horrific crime and we hope that the completion of this prosecution will bring some measure of closure to the victims and their families.

• Loretta Lynch, US Attorney General

Mayor Marty Walsh of Boston said he hoped the verdict brought closure for those affected but didn't comment on the decision to implement the death penalty.

I hope this verdict provides a small amount of closure to the survivors, families, and all impacted by the violent and tragic events surrounding the 2013 Boston Marathon. We will forever remember and honour those who lost their lives and were affected by those senseless acts of violence on our City. Today, more than ever, we know that Boston is a City of hope, strength and resilience, that can overcome any challenge.

• Marty Walsh, Mayor of Boston

“Today is not a day for celebration,” United States attorney for Massachusetts, Carmen Ortiz told the New York Times.

It is not a day for political or moral debate. It is a day for reflection and healing.

• Carmen Ortiz, US Attorney for Massachusetts

A survey by the Boston Globe found that only 19 per cent of respondents thought Tsarnaev should face the death penalty.

Tsarnaev and his lawyers will undoubtedly mount multiple appeals cases, which means the case is likely to drag on for several years.

More: Welcome to America, where they are bringing back death by firing squad