Shortly after midnight of April 18–19, 2013, the two suspects in the Boston Marathon bombing engaged in a protracted battle with police, in Watertown involving the use of firearms and explosives. Tamerlan Tsarnaev was critically wounded and later pronounced dead and the town was completely locked down for hours as police, FBI, and Army National Guard personnel patrolled it, looking for the remaining suspect, Dzhokhar Tsarnaev, who was captured wounded but alive in a boat shortly after the lockdown ended on the following evening.