A long, tense week is over for residents of Boston, Massachusetts, and its suburbs, after U.S. law enforcement authorities cornered and captured the second of two suspected Boston Marathon bombers late Friday.
Nineteen-year-old suspect Dzhokhar Tsarnaev is under heavy guard Saturday at Boston's Beth Israel Deaconess Medical Center, where he is in serious condition. The other suspect, his 26-year-old brother Tamerlan, was killed during a shootout with police late Thursday as Dzhokhar fled on foot.
Police cornered the younger Tsarnaev hiding inside a boat in the backyard of a house in the Boston suburb of Watertown Friday. Authorities captured him after an exchange of gunfire.
Celebrations erupted in the Boston suburb of Watertown where he was captured. Onlookers cheered police and Federal Bureau of Investigation (FBI) personnel as they drove out of Watertown.
Citizens also celebrated in downtown Boston, where three people died in twin bombings during the annual running of the world-famous Boston Marathon Monday. More than 170 people were injured, many seriously, in the attack.
U.S. President Barack Obama said in his weekly address Saturday that the successful outcome of the manhunt shows that "Americans refuse to be terrorized."
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Late Friday, the president said more remains to be learned about how and why the bombings took place.
"Obviously tonight there are still many unanswered questions. Among them: why did young men who grew up and studied here as part of our communities and our country resort to such violence? How did they plan and carry out these attacks, and did they receive any help? The families of those killed so senselessly deserve answers," he said.
Republican Senator Tim Scott of the state of South Carolina said in the Republicans' weekly address that the attacks have only strengthened the resolve of the nation.
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The suspects were identified late Thursday, just hours after the FBI released pictures of them in hopes that someone would recognize them.
The FBI says it has video of Dzhokhar placing a backpack along a curb moments before the bombing.
The two suspects allegedly killed a security officer from the Massachusetts Institute of Technology Thursday. They also allegedly stole a car and threw grenades and other explosives at officers during a police chase.
The Tsarnaev brothers are ethnic Chechens who came to the Boston area as boys. Family members and friends say they cannot believe the two could have carried out such a dreadful crime. But an uncle who lives in suburban Washington called them losers who brought shame on all Chechens.