Bombing suspect in custody after standoff with police in Watertown

One of the men believed to be behind the bombing in Boston, killing 3 people and injuring more than 170, is already in custody after a standoff that nearly lasted for two hours in Watertown.

Dzhokhar A. Tsarnaev, 19, of Cambridge was apprehended by the police.

Tsarnaev has been hiding in a boat in the backyard of a home in Watertown, just outside the city. He was rushed to a local hospital. Police approached him cautiously, worried that he might be wearing a suicide bomb vest.

"We got him," Boston Mayor Thomas M. Menino tweeted immediately aftewards. He took to the police radio to thank officers personally, telling them, "Good job, guys!"

The apprehension of the suspect was the latest development into a city that is still in shock.

The other suspect, Tsarnaev's brother, was killed yesterday (Philippine time) in a gun battle with police. A Massachusetts Institute of Technology police officer, Sean Collier, was also killed and a Massachusetts Bay Transportation Authority police officer was seriously injured.

"We've closed an important chapter in this tragedy," according to President Barack Obama said in brief remarks at the White House, noting there were still many unanswered questions about the Tsarnaevs' actions.

"Whatever they thought they could ultimately achieve, they failed," Obama said. Americans, he said, "refuse to be terrorized."

Tsarnaev is a student of the University of Massachusetts-Dartmouth. The Tsarnaev family is originally from Chechnya, a volatile and once war-torn southern Russian republic. The family fled to Kyrgyzstan and eventually immigrated to the United States as refugees about ten years ago.

Tsarnaev was discovered hiding in the boat, and in less than an hour after officials held a news conference to say that he has eluded them, he was captured despite a day long search of a 20-block area in Watertown by heavily armed police.

A State Police helicopter peeked down into the boat from above. Police used "flash bang" stun grenades to disorient and distract him, Davis said. An FBI hostage rescue team eventually pulled him out.