That's when the brothers threw the first bomb.
Minute Four: 12:44 a.m.
MacLellan: "Officer Reynolds said to me, 'Sarge, run!' We got down. The bomb blew up and blew out the windows on that side of [MacLellan's] cruiser… Thank God, it was a big, high vehicle, too. If you saw the shrapnel on the side of the vehicle, we got very lucky.”.
Minute Five: 12:45 a.m.
The brothers threw a second pipe bomb, which bounced a couple times in the street and did not go off. Officer Reynolds radioed for backup.
Minute Six: 12:46 a.m.
The brothers threw a third pipe bomb, which also turned out to be a dud.
MacLellan was firing at the brothers from behind a tree, with Reynolds joining in from behind his own cruiser, as three more cops joined the firefight: Officer Miguel Colon, Officer Tim Menton, and Sgt. Jeffrey Pugliese, 57, a married father of two with 33 years on the force.
Minute Seven: 12:47 a.m.
MacLellan shouted to the suspects that they were surrounded; in response, they threw a fourth pipe bomb. This one detonated and damaged cars and houses, but injured no officers.
“When it exploded it made my eyes shake sideways,” MacLellan said. “It was huge. It was a crazy percussion against your chest.
Sgt. Pugliese, meanwhile, had snuck into someone’s backyard and was working his way toward the brothers from behind a row of houses.
"I could see Tamerlan and Dzhokhar in front of the black Mercedes. I could see muzzle flashes from both sides of the vehicle," he remembered. "They were moving back and forth, like they were swapping sides… Under the vehicle, I could see shadows and a little bit of their ankles, so I decided to take a few skip shots (shots aimed at the ground that bounce at a low height.) I was trying to take out their ankles. That's when I believe Tamerlan realized I was there.”
Minute Eight: 12:48 a.m.
Officer Michael Comick, 25 years old and only four months on the job, pulled up next, still thinking he was only dealing with a carjacking.
Then the rookie heard the fifth explosion. "Just as I'm looking up to see what's going on, the big pressure cooker went off," Comick remembered. "That was a very loud bang, and a big glow that lit up the entire night. Car alarms were going off. Things were shattering. I felt like someone dropped a bunch of stones on my head, and it ended up being the shrapnel from the explosion, falling down from the sky."
"You want more?" the older brother reportedly taunted. "I give you more."
Minute Nine: 12:49 a.m.
Sgt. Pugliese braced for battle as Tamerlan rushed him.
He left his position of cover and came running up the street,” Pugliese said. “He was firing at me as he advanced towards me. We were exchanging gunfire… He then had a problem with his firearm -- I don't know if it jammed or ran out of ammunition. He looked down at his pistol in frustration, then he looked back at me. Our eyes met for a moment."
Minute Ten: 12:50 a.m.
Tamerlan threw his empty pistol at the Sergeant, hitting him in the left bicep, and then ran. Sgt. Pugliese jumped him and Sgt. MacLellan assisted in trying to cuff the perp.
Just then the Mercedes, with the younger brother at the wheel, began barreling toward them.
Minute Eleven: 12:51 a.m.
"I grabbed Tamerlan by the waist of his pants. I was trying to pull him out of the street," Pugliese remembered. "Sgt. MacLellan had retreated to a position of cover. Joe [Reynolds] did, too. I had my prisoner; I didn't want anything to happen to him at this point. The next thing I knew, the headlights were right here in my face, and I had to let go of Tamerlan.
Dzhokhar drove over his brother and dragged him about 25 feet before cutting a corner and speeding off.
Minute Tweleve: 12:52 a.m.
Pugliese got up.
"Tamerlan's still moving, believe it or not," Pugliese remembered. "It turned out he had been shot nine times, prior to being run over. I sat on him, got his arms behind is back. Joe came up to assist me; together we handcuffed him. He was conscious. He was moaning and still moving."
With that, the firefight was over.