Kevin Cullen Valor, devotion brought Watertown drama to end ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Andrew Kitzenberg/getonhand.com Police say the Marathon bombing suspects fired on them in Watertown from behind the SUV they had stolen in a carjacking. Essdras M. Suarez/Globe Staff Watertown resident Andrew Kitzenberg shot photos of the shoot-out from the third floor of his home. Andrew Kitzenberg/getonhand.com “It sounded like fireworks or firecrackers — you know, ‘pop-pop-pop-pop,’ ” Kitzenberg said, recalling the gun battle outside his door. Andrew Kitzenberg/getonhand.com Shortly after the gunfire began, Kitzenberg said, he watched the two suspects hurl explosives at police. Andrew Kitzenberg/getonhand.com As events unfolded, Tamerlan Tsarnaev, 26, would be killed, shot by police then run over by his younger brother, Dzhokhar, 19, in his desperate attempt to escape. Andrew Kitzenberg/getonhand.com As soon as the black SUV driven by Dzhokhar Tsarnaev left the street, officers rushed toward the green sedan and the spot of the shooting. Andrew Kitzenberg/getonhand.com A member of the bomb squad inspected a blast mark in the street where a large explosion had taken place. Andrew Kitzenberg/getonhand.com Heavily armed agents descended on the scene after the shoot-out. Andrew Kitzenberg/getonhand.com The vehicle at the bottom of the photo was aimed at the suspects to draw fire by a Watertown police officer, who exited the vehicle before sending it toward them. Essdras M. Suarez/Globe Staff The intersection of Dexter and Nichols streets was blocked off after the shoot-out.