Video: Boston Marathon bombings: relief on streets as suspect captured The suspect, 19-year-old Dzhokhar Tsarnaev, was taken to a hospital after engaging in a firefight with police while hiding out in a parked boat. He was admitted to hospital in serious condition at Beth Israel Deaconess Medical Center, unable to be questioned about his motives. Earlier in the day, his 26-year-old brother, Tamerlan, had been killed in a gun battle and car chase during which he and his brother hurled explosives at police from a stolen car, according to authorities. During the getaway attempt, the brothers killed an MIT policeman and severely wounded another officer, officials said. The younger brother managed to escape and was found in the boat in Watertown, a neighbourhood near Boston, hours later. The capture of Dzhokhar Tsarnaev - taken alive, though seriously wounded - lifted days of anxiety for Boston and Americans everywhere. The violent endgame unfolded four days after the bombing and just a day after the FBI released surveillance-camera images of two men suspected of planting pressure-cooker explosives that ripped through the crowd at the marathon finish line, killing three people and wounding more than 180. The two men were identified by authorities and relatives as ethnic Chechens from southern Russia who had been in the US for about a decade and were believed to be living in Cambridge, just outside Boston. But investigators gave no details on the motive for the attack. The breakthrough came when a man in a Watertown neighbourhood saw blood on a boat parked in a yard and pulled back the tarp to see a man covered in blood, authorities said. The resident called 911 and when police arrived, they tried to talk the suspect into getting out of the boat, said Boston Police Commissioner Ed Davis. Instead, he said, there was an exchange of gunfire - the final volley of one of the biggest manhunts in American history. Davis said an FBI team approached the boat and apprehended the suspect.