Captured! Scenes From the Boston Manhunt

It was a dramatic 48 hours as police conducted a manhunt for the two brothers thought to be responsible for the Boston Marathon attack.

A dramatic shoot-out in the Boston suburb of Watertown in the early hours of Friday left one brother, 26-year-old Tamerlan Tsarnaev, dead.

His younger brother, Dzhokhar, escaped wounded but was captured Friday night after a standoff with police in a backyard in Watertown. He was believed to be hiding out in a boat with a tarp over it.

"We got him," Boston Mayor Tom Menino tweeted.

"CAPTURED!!! The hunt is over. The search is done. The terror is over. And justice has won," the Boston Police Department said on its Twitter account.

Click ahead for pictures of the dramatic events that led to the final suspect being captured.

By CNBC.com

Dzhokhar, who was captured alive late Friday, was pictured in a "white hat" in these images from the Marathon bombing released on Thursday by the FBI.

He is believed to be a U.S. legal permanent resident. He is a resident of Cambridge, Mass., and has a Massachusetts driver's license.

Police have identified Tamerlan Tsarnaev as the dead Boston bombing "Suspect #1". He died in the hospital following a dramatic firefight with police in Watertown, Mass. He is pictured here on the day of the bombings in a baseball hat and sunglasses.

Dzhokhar was on the run for much of Friday and said to be injured from the earlier standoff. Police cornered him in a Watertown backyard after a tip from a neighbor who went outside to smoke and noticed a tarp on the boat was flapping and saw what looked like a curled-up person and bloody clothes.

This was the boat that Dzhokhar was hiding out in at 67 Franklin Street in Watertown when police cornered him.

After that tip from a neighbor, thermal imaging from a helicopter confirmed there was a person in the boat. Police swooped in.

A tweet from the Boston police says it all — "CAPTURED!!!" Twitter played a huge role in this manhunt as police and other officials used Twitter to communicate lockdowns and other developments.

Richard Donahue, Massachusetts Bay Transportation Authority officer critically wounded during shootout with suspects in 2013 Boston Marathon bombings.

SWAT teams moved into position at the intersection of Nichols Avenue and Melendy Avenue in Watertown while searching for one of the two marathon bombing suspects.

Watertown residents were stuck inside as police locked down the area as they chased down the second suspect.

SWAT teams moved into position at the intersection of Nichols Avenue and Melendy Avenue in Watertown while searching for one of the two marathon bombing suspects.

State Police searching for suspects on Mount Auburn Street near Watertown Square.

Armed police at the intersection of School and Walnut Street in Watertown.

People are evacuated from a home near where police thought the one remaining suspect might have been hiding on April 19, 2013 in Watertown, Massachusetts.

Ruslan Tsarni, the uncle of the suspected Boston Marathon bombing suspects, speaks to reporters in front of his home in Montgomery Village, MD, April 19, 2013. He said to reporters, "Jahar, if you are alive, turn yourself in and ask for forgiveness from the victims."

Blackhawk helicopters search the locked down Watertown neighborhood.

The Boston area was under lockdown during the manhunt. The Mass. Avenue bridge had only a few pedestrians crossing.

SWAT teams searched homes along Winsor Avenue in Watertown while searching for one of the two suspects in the terrorist bombing of the 117th Boston Marathon earlier this week.

SWAT team members go door-to-door searching for 19-year-old Boston Marathon bombing suspect Dzhokhar A. Tsarnaev.

Federal agents descend on the home of a suspect-at-large in the Boston Marathon bombing and nearby Watertown shooting, on Norfolk Street in Cambridge, Massachusetts.

SWAT team members prepare to search for one remaining suspect at an apartment building in Watertown, Massachusetts.

Boston Police Commissioner Edward Davis (left) and a Watertown Police official speak during a media briefing in the parking lot of the Watertown Mall. Police conducted door to door searches for the suspect and they have advised all residents to stay inside. They also suspended all public transport through the MBTA, the fifth-largest mass transit system in the U.S., until further notice.

Sean Collier, 26, a Massachusetts Institute of Technology police officer, was shot and at approximately 10:20 Thursday night while confronting the two Boston Marathon bombing suspects.

Police gather in the parking lot in front of a Best Buy store, near the Watertown Mall.

Harvard University, Boston University, the Massachusetts Institute of Technology and Boston public schools were all closed. Emerson University closed and told students to stay where they were.

SWAT teams moved into position at the intersection of Nichols Avenue and Melendy Avenue in Watertown while searching for one of the two marathon bombing suspects.

South Station in Boston, Massachusetts was shut down and heavily guarded by police in response to the shootings in Cambridge and Watertown, on the morning of April 19, 2013.

A posted sign is seen at a Starbucks in the financial district in Boston, Massachusetts.

"We've been advised to Lockdown & stay in place. We apologize for the inconvenience. Please stay safe. <3 your Baristas."

Watertown residents, stuck inside for most of the 48 hours during the manhunt, came out into the street after the second suspect was captured alive and cheered on police. Some even chanted "U-S-A!"