Dzhokhar Tsarnaev's death penalty may take years to actually execute

Boston bomber Dzhokhar Tsarnaev may have been sentenced to death by US Jury, but it could be years till he's actually executed.

Tsarnaev, now 21, who along with his brother had placed bombs at the finishing line of the Boston Marathon in 2013, killing 3 people with 260 injured, showed no emotion as decision of death by lethal injection was announced, the BBC reported.

The legal proceedings against Tsarnaev had lasted for several months, and after 14 hours of deliberations, when the culprit showed no remorse, the jury concluded to put him to death, even though Massachusetts had ended the death penalty in 1984.

But since Tsarnaev was tried on federal charges, he was eligible for execution.

Tsarnaev's defence team had admitted though he had his role in the attacks, it was his older brother, Tamerlan, shot dead by police, who was the driving force.

After the sentence was announced, US Attorney General Loretta Lynch said the punishment was apt for "the horrific crime and we hope that the completion of this prosecution will bring some measure of closure to the victims and their families."

However, not all of the victims supported the decision as parents of an eight-year-old boy killed in the blast, penned an article in a newspaper, requesting the government against a death sentence, for it would delay their emotional closure.

Chances are, that he would be moved to a federal prison in Terre Haute, Indiana, to await execution, but there could be years of appeals.