Jury took 14 hours to reach death penalty verdict

The jury in the trial of Dzhokhar Tsarnaev took 14 hours of deliberations to reach their decision to sentence the 21-year-old to death by lethal injection.

Tsarnaev was convicted last month of all 30 federal charges against him, 17 of which carried the possibility of the death penalty.

The bombing killed three people and injured more than 260 others.

Tsarnaev killed a Massachusetts Institute of Technology police officer days later.

The defence sought to save Tsarnaev's life by pinning most of the blame on his radicalised older brother.

But prosecutors portrayed Tsarnaev as an equal partner in the attack and so heartless he placed a bomb behind children, killing an eight-year-old boy.