Conversation so far:
when does the boston bomber get put to death
Dzhokhar Tsarnaev was sentenced to death on June 24, 2015.
Where is Dzhokhar Tsarnaev incarcerated?
On June 25, 2015, Dzhokhar Tsarnaev was transferred to the United States Penitentiary, Florence High in Colorado; as of July 17, he had been transferred to ADX Florence.

Question: what charges did the bomber get
Self-contained rewrite: What were the charges that Dzhokhar Tsarnaev was convicted of?