"When you attack one Muslim, you attack all Muslims."-Dzhokhar Tsarnaev Tamerlan Anzorovich "Tam" Tsarnaev and Dzhokhar Anzorovich "Jahar" Tsarnaev were both the perpetrators of the April 15, 2013, bombings at the 2013 Boston Marathon, which killed three people and wounded at least 264 others.