Shortly after the Boston Marathon bombing in April 2013, police searched for the bombing suspects, brothers Tamerlan and Dzhokhar Tsarnaev in Watertown, Mass.
Police officers near a crime scene in Watertown, Mass. on Friday, April 19, 2013. Tamerlan and Dzhokhar Tsarnaev, the suspects in the Boston Marathon bombing that killed three people and wounded 260, allegedly killed an MIT police officer, hurled homemade bombs at police and took off in a stolen car. It led to a police chase that brought officers to Watertown, a Boston suburb. Matt Rourke/AP Buy Photo