The Washington Times - April 19, 2013, 08:17AM

The wounded man shown with his legs mangled and wheeled in a wheelchair by a cowboy hat-wearing Good Samaritan in the aftermath of the marathon bombings helped authorities identify the bombers. Jeff Bauman, 27, provided one of the key tips that helped authorities focus on Dzhokhar A. Tsarnaev.

“He woke up under so much drugs, asked for a paper and pen and wrote, ‘bag, saw the guy, looked right at me,’” Bauman’s brother, Chris, told Bloomberg News.

Bauman lost both legs in the explosion.

9:56 a.m.

Homeland Security Secretary Janet Napolitano on Friday canceled her testimony to Congress on the new immigration bill in order to stay abreast of the ongoing situation in Boston, a Senate aide said.

Ms. Napolitano had been slated to testify about the new bill to legalize illegal immigrants, introduced on Wednesday.

She has been on Capitol Hill for much of the week testifying about her department’s budget, including an hours-long hearing Thursday morning, where she said Homeland Security agents have been involved in the Boston manhunt since Monday.

9:46 a.m.

New York State Police on Friday pulled over a vehicle being driven by two suspected Russian nationals near Niagara Falls, one media outlet reported. Bomb technicians have responded to the scene, said police in a report from local media station WGRZ. And a robot has been dispatched to look through four backpacks in the vehicle.

The vehicle has Massachusetts license plates, WGRZ reported. The FBI is reported to have dispatched joint-terrorism task force officials to the scene.

— Cheryl K. Chumley

9:43 a.m.

A law enforcement source said there is concern among investigators that relatives or associates of the two Boston Marathon bombers could represent an additional threat. The source, who asked not to be identified because he was not authorized to speak on the matter, said that would explain the massive lockdown in the case, including a shutdown of Boston.

— Jerry Seper

9:39 a.m.

President Obama will be briefed shortly on the investigation in the Boston area by FBI Director Robert Mueller and Attorney General Eric H. Holder Jr., who are on their way to the White House.

— Dave Boyer

9:35 a.m.

Boston public radio host Robin Young said Friday she knew Dzhokhar A. Tsarnaev, a 19-year-old immigrant from Chechnya and the younger of two brothers suspected of setting off two bombs at the Boston Marathon.

Ms. Young told NBC’s “Today Show” that her nephew knew the young man, who she described as “beautiful” and a high-achieving student.

“Nobody can believe that it’s this young man,” Ms. Young told the show.

— Tom Howell Jr.

9:31 a.m.

The uncle of the two Boston bombing suspects, Dzhokhar A. Tsarnaev, 19, and Tamerlan Dzhokhar, killed at 26, said the two shared an apartment near Boston, and they’d been living in the United States for about a decade.

Ruslan Tsarni of Montgomery Village in Maryland said the brothers traveled to America from Chechnya about 10 years ago, The Associated Press reported.

Tamerlan also had a YouTube profile where he posted photos of himself and his girlfriend, another media source reported. On the account, he wrote that his girlfriend was half Portuguese, half Italian and had converted to his Islam religion.

One of his postings: “She’s beautiful, man!”

— Cheryl K. Chumley

9:22 a.m.

Law enforcement authorities have identified the transit police officer critically wounded in a shootout with the Boston Marathon bombing suspects. MBTA Police Chief Paul MacMillan says the wounded officer is Richard Donohue, 33, a three-year veteran of the department.

— Jerry Seper

9:20 a.m.

Boston marathon bombing suspect Dzhokhar A. Tsarnaev, the 19-year-old immigrant from Chechnya, was a registered voter in Massachusetts, Buzzfeed reports.

A Lexis search turned up Tsarnaev’s name on Massachusetts voter rolls, with an address on Norfolk Street in Cambridge, Mass. It listed his date of birth as July 1993.

News reports indicate the terrorism suspect was a legal resident but not a U.S. citizen.

— Dave Boyer

9:12 a.m.

The uncle of the suspects told WBZ in Boston that the Tsarnaevs have been in the U.S. seven or eight years. He deemed their actions “horrible.”

9:07 a.m.

The Cambridge Chronicle reports Dzhokhar A. Tsarnaev is a 2011 Cambridge Rindge and Latin High School graduate. He was an All-Star on the wrestling team and also was on the volleyball team.

9:03 a.m.

As police hunt for a second suspect tied to the Boston Marathon bombings, police and cable news networks are treading warily in their depictions of what is going on.

CNN said they are showing footage of special operations teams in Watertown, Mass., on a tape delay in case the scene turns violent. Last night, police killed the older of two brothers from the Chechnya region of Russian who are suspected of the bombings that killed three and injured nearly 200 people on Monday near the finish line of the famous race.

Boston Police, meanwhile, took to Twitter to warn people about what they disclose, tweeting: “#MediaAlert: WARNING: Do Not Compromise Officer Safety by Broadcasting Tactical Positions of Homes Being Searched.

— Thomas Howell Jr.

8:56 a.m.

The FBI has released an updated photo of Dzhokhar A. Tsarnaev.

—Dave Boyer

8:49 a.m.

Police have surrounded a house in Watertown, on high alert, and media reported they have established a perimeter of about 20 blocks.

A helicopter is hovering overhead, and Fox News said nine city buses filled with police officers have responded to the scene.

The manhunt for Suspect No 2 in the Boston bombings, Dzhokhar A. Tsarnaev, age 19, has stretched 10 hours.

The first suspect, 26-year-old Tamerlan Tsarnaev, also spelled Tamerlin, was killed in a shootout with police.

8:44 a.m.

Police are surrounding a home in Watertown as part of a manhunt to catch Dzhokhar Tsarnaev, a 19-year-old originally from the Chechnya region of Russia. He is Suspect No. 2 from the Boston Marathon bombing.

8:30 a.m.

The city of Boston has been ordered to shelter in place and the Massachusetts State Police is advising people in the surrounding towns to stay in their homes during the manhunt for the younger of two suspects tied to the Boston Marathon bombings.

Cable networks identified the man at large as Dzhokhar Tsarnaev, a 19-year-old originally from the Chechnya region of Russia.

His older brother and alleged accomplice, Tamerlan Tsarnaev, died in a shootout with police in Watertown, Mass., overnight.

— Tom Howell Jr.

8:11 a.m.

This photograph, taken from a surveillance camera in Boston and posted on Twitter, shows one of the suspects of the Boston Marathon bombing in the same frame with a boy who appears to be 8-year-old Martin Richard, who was killed in one of the blasts. The circle at bottom right appears to be a backpack or a package.

— Dave Boyer

8:06 a.m.

Massachusetts Gov. Deval Patrick in Watertown on Friday reiterated earlier police warnings to Boston-area residents to stay inside, and let law enforcement comb for the second suspect in the marathon bombings.

The search for Suspect No. 2 is taking place through several neighborhoods, Mr. Patrick said. It may take hours. But the public can help by staying off the streets.

“Stay indoors,” he said. “Do not open your doors.”

One MBTA officer who was seriously wounded during the search effort is now in surgery, Mr. Patrick said. Another MIT officer has been killed.

Police said the bombers are brothers. Suspect No. 2, Dzhokhar A. Tsarnaev, is 19 and police are actively searching for him. Fox News reported that he had received a $2,500 scholarship to study at an elite Latin school in Cambridge.

The other suspect was killed in a shootout with police and was 26 years old, Fox News reported. His name has not been released, but police say the brothers hail from overseas. They are believed to come from Chechnya — where there’s a huge terrorist presence — or perhaps Turkey, and have been in the United States for about a year, various media reported.

— Cheryl K. Chumley and Thomas Howell Jr.