BREAKING: Caught!

In custody

WE DON'T KNOW IF THE SUSPECT WAS SHOT BUT WE KNOW HE'S CAUGHT.

BROTHER WAS KILLED IN GUNFIRE.

Killed by gunfire.

FOUR PEOPLE WERE KILLED BY THESE MEN. THREE BY THE BOMBING. ONE BY GUNFIRE.

FEDERAL LAW ENFORCEMENT AND BOSTON POLICE CONFIRMED CAPTURE.

NBC News and Associated Press confirms the Boston Marathon bombing suspect was captured alive Friday night after police found him in a boat in a suburban backyard following a bloody rampage and daylong manhunt, law enforcement sources said.

Cheers went up from a crowd of police gathered at the scene in Watertown, Mass., where bursts of gunfire had been heard over the course of two hours.

The arrest ended five days of terror from the bombing at the marathon finish line, which killed three people, wounded 176 and left the city of Boston on edge.

ABC News reports that developments came just minutes after a press conference by law enforcement officials and Massachusetts Gov. Deval Patrick said a massive dragnet had failed to find the suspect.

George Pizzuto, who lives in the neighborhood where the police activity is centered, said that his friend and neighbor, David Henneberry, discovered a body in his boat and reported it to police around 7 p.m. tonight, just minutes after Patrick said residents could go outside again.

"He looked and noticed something was off about his boat, so he got his ladder, and he put his ladder up on the side of the boat and climbed up, and then he saw blood on it, and he thought he saw what was a body laying in the boat," Pizzuto said. "So he got out of the boat fast and called police."

He said that Henneberry was being interviewed by police about what he saw, and that power had just been cut to the Henneberry's house.

"That boat's his baby. He takes care of it like you wouldn't believe. And they told him it's all shot up," Pizzuto said. "He's going to be heartbroken."

Erik Thompson, who lives across the street from the Henneberry's home, said he heard gunshots and saw law enforcement rush to the scene.

"There was some gunfire earlier which was almost immediately stopped. People were yelling to cease fire, and it seems to be focused on some homes across the street from where I am, which I think is the western side of the street," Thompson said.

"There's still a significant presence of law enforcement there," he said. "It's like D-Day."

The governor lifted an order that kept people in Watertown, Boston and surrounding suburbs inside all day.

The officials had said at the press conference that they thoroughly searched Watertown and had not found any sign of Tsarnaev.

Earlier in the day, police in took three individuals into custody in connection with the search for Tsarnaev.

Lt. Robert Richard of New Bedford, Mass., said three "college age" individuals were taken in for questioning by the FBI. New Bedford is less than 15 miles north of Dartmouth, Mass., where Tsarnaev attends college.

Following a late-night shootout with police that involved more than 200 rounds of ammunition and explosive devices, Dzhokhar Tsarnaev, 19, abandoned his car and slipped away on foot.

His older brother and alleged accomplice in the bombings, Tamerlan Tsarnaev, 26, was killed in the gunfire. The pair are believed to have dropped two bombs near the finish line of the Boston Marathon Monday, killing three and injuring more than 170.

Massachusetts State Police Superintendent Col. Timothy Alben said at a press conference this afternoon that the Tsarnaev brothers opened fire and threw explosives at cops around 10:30 p.m. Thursday as they fled from Cambridge to Watertown. But he said law enforcement were forced to choose between providing first aid to those in need and securing a perimeter to contain the suspect.

"Unfortunately we did not have enough people to provide first aid" to the injured "and establish a perimeter," the colonel said.