An officer carries a child away from an area where a suspect was hiding on Franklin Street on Friday, April 19, in Watertown, Massachusetts. After a car chase and shootout with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, was shot and killed by police early Friday, and his brother and second suspect, Dzhokhar Tsarnaev, was taken into custody Friday night. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170.
Residents flee from an area where a suspect was hiding on Franklin Street on April 19.
Officers approach an area where a suspect was hiding on April 19.
People react while watching police respond to reported gunfire on April 19.
An ambulance carries Boston Marathon bombing suspect Dzhokhar Tsarnaev, 19, from the scene after he was apprehended in Watertown, Massachusetts, on April 19.
An image posted to the social sharing website Reddit purports to show suspect Dzhokar Tsarnaev being detained by law enforcement officers.
Dzhokar Tsarnaev gets out of the boat he was hiding in outside of a home in Watertown, as seen in a surveillance video still.
Special imaging techniques employed by Massachusetts State Police reveal Boston Marathon bombing suspect Dzhokar Tsarnaev hiding in a boat in a backyard in Watertown on April 19.
Police SWAT teams leave the area after apprehending the suspect in a yard where he was hiding in a dry-docked boat on April 19.
Members of a police SWAT team run to the scene where the suspect was hiding on April 19.
Police converge near the scene where the bombing suspect was hiding.
SWAT team members run toward a police assault on a house as gunfire erupts on April 19.
Family members react after police SWAT teams assaulted a house on their street on April 19.
Police officers search house to house for the second suspect in a neighborhood of Watertown, Massachusetts, on Friday.
Members of a family who fled the scene near where the suspect was hiding talk with the authorities on Friday.
Law enforcement officials evacuate people away from the area where the suspect was hiding.
Police move in to the area where the suspect was hiding on Friday in Watertown, Massachusetts.
SWAT team members move down residential streets as they perform door-to-door searches in Watertown, Massachusetts, on April 19.
SWAT team members talk with Watertown, Massachusetts, residents while conducting door-to-door searches on April 19.
A Watertown police vehicle with bullet holes in its body and a shattered windshield is towed out of the search area on April 19 in Watertown, Massachusetts.
SWAT teams prepare to enter a home as they continue the door-to-door search.
SWAT teams continue the ongoing manhunt in Watertown, Massachusetts.
A man watches from the window of a home as a SWAT team member keeps watch on Friday, in Watertown, Massachusetts.
Flags decorate the fence along the length of Dorchester Avenue that runs over the sparsely traveled expressway in South Boston as a memorial to the victims of the Boston Marathon bombings.
Beacon Street across from the Boston Common was nearly vacant of vehicle traffic at 10:45 a.m. as the manhunt for the second suspect took place.
An entrance into Fenway Park is closed after the April 19 game between the Kansas City Royals and Boston Red Sox was posptoned.
Police to continue to the door-to-door search on Francis Street in Watertown, Massachusetts, on Friday.
Max Jaffe, a Tufts University student, who lives across the street from slain MIT police officer Sean Collier, looks on from his home on Friday.
SWAT team members line a residential street in Watertown, Massachusetts, as the manhunt continues on Friday.
U.S. President Barack Obama meets with members of his national security team in the Situation Room of the White House on April 19 to discuss developments in the Boston bombings investigation.
A Police SWAT team prepares to make a house-to-house search as residents leave their homes in Watertown, Massachusetts, on April 19.
Law enforcement officers place themselves in an overhead position on Arsenal Street as the search continues on April 19.
Law enforcement officers react to what was initially thought to be a threatening suspect on Arsenal Street on April 19.
Armed Boston Maritime Safety Security team members patrol the Boston Harbor on April 19.
A SWAT team member talks with a resident on April 19 during a house-to-house search.
Anzor Tsarnayev, father of the two suspects, who is currently living in Russia, maintains that his sons are innocent. "Someone framed them," he told the Russian national TV network Zvezda in Dagestan. "I don't know who exactly did it. But someone did. And being cowards, they shot the boy dead. There are cops like this."
The Cape Cod, Massachusetts, Police Department SWAT team participates in the search of houses in Watertown, Massachusetts, on April 19.
A police SWAT team searches houses on April 19 for the second suspect.
SWAT team members continue to search neighborhoods in Watertown on April 19.
SWAT teams searches homes along Winsor Avenue in Watertown on April 19.
A U.S. military helicopter lands behind Watertown Mall as law enforcement agencies continue to search for the 19-year-old bombing suspect on Friday.
A Massachusetts state trooper watches other troopers line up at Watertown Mall as the manhunt for the second suspect continues in Watertown on Friday.
Katia Costa looks out her window as police continue the manhunt on Nichols Avenue in Watertown on Friday.
Police continue the ongoing manhunt for the second suspect on Williow Avenue in Watertown on Friday.
Law enforcement officers search a Watertown neighborhood on Friday.
Watertown residents watch members of law enforcement agencies search their neighborhood for the remaining suspect on Friday.
CNN affiliate WBZ that Tamerlan "got what he deserved" in an interview outside his home in Montgomery Village, Maryland, on Friday." border="0" height="360" id="articleGalleryPhoto0047" width="640"/>Ruslan Tsarni, uncle of the Boston terror suspects, told
CNN affiliate WBZ that Tamerlan "got what he deserved" in an interview outside his home in Montgomery Village, Maryland, on Friday.
Officers from several agencies search an apartment complex in Watertown on Friday.
Cambridge, Massachusetts, residents look out as law enforcement searches the area on Friday.
Law enforcement officers search an apartment complex as residents are evacuated in Watertown on Friday.
Officers coordinate a search of an apartment complex in Watertown on Friday.
SWAT teams move into position at the intersection of Nichols and Melendy avenues in Watertown, Massachusetts, on Friday.
SWAT teams gather at the intersection of Nichols and Melendy avenues in Watertown while searching for the remaining suspect on Friday.
Residents are evacuated as members of the FBI, state police, Boston Police, Cambridge Police and other law enforcement agencies survey the perimeter near the home of the man identified as Suspect 2 on Norfolk Street on Friday, April 19 in Cambridge, Massachusetts.
A state police officer stands ready as the search for the second suspect takes place on Mount Auburn Street near Watertown Square in Watertown, Massachusetts, on Friday.
SWAT officers search an apartment for the remaining suspect in the Boston Marathon bombings in Watertown on Friday, April 19. A resident reported seeing drops of blood in the apartment building.
A member of the SWAT team trains a gun on an apartment building on Friday during the search for the second suspect.
A woman is questioned by Cambridge police and other law enforcement agencies Friday near the home of the second suspect in Cambridge, Massachusetts. A Massachusetts Institute of Technology campus police officer was shot and killed late Thursday night at the school's campus in Cambridge. A short time later, police reported exchanging gunfire with alleged carjackers in nearby Watertown.
Members of the FBI, state police, Boston Police, Cambridge police and other law enforcement agencies put up tape in front of a woman being questioned near the home of the second suspect in Cambridge, Massachusetts, on Friday.
A resident watches as police search an apartment complex in Watertown on Friday.
A Massachusetts State Police officer checks the bag of a cyclist amid heightened security on Friday in Watertown.
A man looks out as a SWAT team member knocks on his neighbors' door in Watertown, Massachusetts, on Friday.
Police search for the second suspect at an apartment building where a resident reported finding drops of blood on Friday in Watertown, Massachusetts.
SWAT team members search in Watertown on Friday for the surviving Boston Marathon bombing suspect.
SWAT team members search for the suspect at a residential building on Friday in Watertown.
Onlookers take pictures while SWAT team members look around on Friday.
Massachusetts Gov. Deval Patrick, left, speaks to the media at a shopping mall on the perimeter of a locked-down area during the search on Friday.
SWAT officers check a door with guns ready on Friday.
An FBI SWAT team surrounds a home while following a tracking dog in Watertown on Friday.
Metro SWAT members hang off the back of a truck during the search on Friday.
Military police arrive in armored vehicles at the parking lot of the Arsenal Mall on Friday in Watertown.
Two police officers stand guard at the perimeter of a locked-down area as the search continues on Friday.
Police officers wait in front of the shopping mall on Friday.
Officers patrol Watertown on Friday.
The aftermath of the shootout that police said involved the two suspects in Watertown early Friday.
Police with guns drawn search for a suspect on Friday in Watertown, Massachusetts.
A police officer runs with his gun drawn on Friday.
Police descend on School and Walnut streets on Friday.
Boston Police gather in the parking lot in front of a Best Buy store near the Watertown Mall on Friday.
Boston Police Commissioner Edward Davis speaks during a media briefing in the parking lot of the Watertown Mall on Friday.
Boston police gather in front of a Best Buy on Friday.
Police stop cars at School and Walnut streets on Friday.
A police officer and his dog patrol School and Walnut streets on Friday.
A Massachusetts state trooper checks a building along Mount Auburn Street as police search neighborhoods in Watertown.
Police search neighborhoods yard by yard on Friday.
Police with guns drawn search for a suspect on Friday.
Police convene on School and Walnut streets on Friday.
School and Walnut streets had a heavy police presence overnight.
A police officer talks to a driver at a checkpoint in Watertown, Massachusetts.
Police officers keep a man on the ground in Watertown on Friday.
Police investigate the scene where the MIT campus police officer was shot and killed on the night of Thursday, April 18, in Cambridge, Massachusetts.
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- Dzhokar Tsarnaev was seen on campus, at party after marathon bombings
- Younger brother was found hiding in boat after manhunt
- Authorities sought brothers after analyzing photos from scene
- Older brother died in shootout, was run over by Tsarnaev, police say
(CNN) -- As the world hunted him, the younger brother suspected in the Boston Marathon bombings acted like any other college sophomore.
Dzhokar Tsarnaev, 19, was on the campus of University of Massachusetts-Dartmouth every day after the attack until late Thursday, a university official told CNN. Tsarnaev attended classes and dorm parties while the rest of Boston came to a tense standstill.
A student at the school told
The Boston Globe that she saw Tsarnaev at a party Wednesday night that was attended by some of his friends from intramural soccer.
"He was just relaxed," she said, asking the paper not to print her name.
Thermal images of Boston suspect
Suspects' father plans to come to U.S.
Bombing suspects' uncle speaks to CNN
Bombing investigation unfolds in 24 hrs
The days-long drama that gripped Boston -- and the world -- began when two homemade bombs made from pressure cookers exploded 12 seconds apart near the finish line of Monday's Boston Marathon. Three people were killed, and more than 170 injured as nails, ball bearings, BBs and shards of broken glass were blasted through the viewing area.
Law enforcement officials combed through photos and surveillance videos, searching for clues to who detonated the bombs. The FBI released photos showing two men they were seeking and asked for the public's help.
At the dorm where Tsarnaev lived, students joked Thursday as they viewed the FBI photos on television, a senior who lived in the suspect's dorm told The Boston Globe.
"We made a joke like, that could be Dzhokar," said Pamala Rolon. "But then we thought it just couldn't be him. Dzhokar? Never."
A tense scene began to unfold Thursday night -- complete with wailing sirens, flashes of blue and red lights, a hail of bullets and explosions from homemade bombs. By early Friday morning, Tsarnaev's older brother, Tamerlan, 26, was dead. Dzhokar Tsarnaev was bleeding as he stole away into the night.
On campus nobody was joking. The school posted a message on its website: "UMass Dartmouth has learned that a person being sought in connection with the Boston Marathon bombing has been identified as a student registered at UMass Dartmouth. The campus is closed. Individuals on campus should shelter in place unless instructed otherwise."
The manhunt for Dzhokar Tsarnaev lasted all day Friday and left Boston streets deserted as police asked everyone to stay indoors. Then after the request was lifted, authorities got a tip: A Watertown man told police someone was hiding in his boat in the backyard, bleeding. It was their suspect, Watertown police Chief Edward Deveau said.
Officers spotted Tsarnaev poking through the tarp covering the boat, and a shootout erupted, Deveau said. Police used "flash-bangs," devices meant to stun people with a loud noise, and negotiated with Tsarnaev for about half an hour.
Chief describes how manhunt ended
"We used a robot to pull the tarp off the boat," David Procopio of the Massachusetts State Police said. "We were also watching him with a thermal imaging camera in our helicopter. He was weakened by blood loss -- injured last night, most likely."
A thermal image photograph, released Saturday by the state police, showed what authorities say was Tsarnaev lying in the middle of the boat.
Police had no idea whether he had weapons or explosives with him, so they repeatedly told him to stand up and lift his shirt to show he wasn't wearing a device, Deveau said.
Eventually Tsarnaev stood up and lifted his shirt for the officers.
"Once we saw that, we felt comfortable enough to send some officer tactical equipment to grab him and pull him away from the boat," Deveau said. He was taken by ambulance to a hospital.
Police are confident there are no other suspects, Deveau said.
"These two acted together and alone," he said. "As far as this little cell and this little group, I think we got our guys."
On Saturday, Dzhokar Tsarnaev was in a Boston hospital being treated for his injuries as federal and state authorities decided what charges he might face in the marathon bombings.
