Twelve women and men are deliberating multiple factors to decide if Dzhokhar Tsarnaev will live or die, as the jury is still out in the Boston Marathon bombing trial.

The jury arrived in court early at 8:30 a.m. They are deliberating behind closed doors as dozens of reporters wait anxiously in and around the courthouse.

With the defendant’s life on the line, the jury is wading carefully through a 24-page document that contains 17 charges. A unanimous vote for death on any of those 17 counts could send Tsarnaev to the federal prison in Terre Haute, Ind., to die by lethal injection. It would require only one juror voting against each of the 17 counts to sentence the 21-year-old defendant to life behind bars, likely at the Supermax ADX prison in Colorado.