article_snippet.sent: " attorney David Bruck told jurors there are only two punishments for jurors to choose from: death, or life in prison without any possibility of parole.
article_snippet.sent: In deciding whether the former college student is executed for the former college student crimes or spends the rest of the former college student days in a high-security federal prison, jurors must weigh the heinousness of the former college student crime and the toll on the former college student victims against so-called mitigating factors, such as the former college student relative youth, mental health and family background, and whether or not the former college student is remorseful.
article_snippet.sent: Under federal law, the jury's decision must be unanimous.
article_snippet.sent: A deadlocked jury would result in an automatic life sentence for Tsarnaev -- which means the defense only needs to convince one juror to spare his life.
highlights_snippet.sent: A deadlocked jury would result in an automatic life sentence for Dzhokhar Tsarnaev .