text: FILE - This undated file photo released Friday, April 19, 2013, by the FBI shows Dzhokhar Tsarnaev. Tsarnaev’s life is on the line as his lawyers return to federal court to make their case that he should be spared the death penalty. Tsarnaev’s defense team is set to begin presenting witnesses on Monday, April 27, 2015, in the penalty phase of his trial, the stage that will determine whether he is executed or spends the rest of his life behind bars. Tsarnaev, 21, already has been convicted of 30 federal charges in the twin bombings that killed three spectators and injured more than 260 others near the marathon’s finish line on April 15, 2013. Seventeen of those charges carry the possibility of the death penalty. (AP Photo/FBI, File