The grisly week that began at the Boston Marathon Monday left one police officer dead.
As police closed in on the bombing suspects Thursday night, law enforcement officials say two officers were shot. One, transit police officer Richard Donohue, is in critical condition at Mount Auburn Hospital.
The other, Sean Collier of the MIT campus police, was pronounced dead Thursday night.
MIT says Collier had gone to respond to a report of an altercation on campus Thursday evening. Soon, word came over the police radio that he had been shot.
U.S. security officials have been warning for years that one of their biggest challenges is detecting homegrown terrorists — extremists who grow up in America, or have lived here for years, know the customs, speak the language, blend in easily and can fly below the radar of law enforcement.
As details of Boston bombing suspects emerge, reports point to two young men of Chechen origin who had been in the U.S. for up to a decade and were seemingly fully integrated into American society.
People who knew Dzhokhar Tsarnaev just have a hard time squaring the man they knew, with the violence in Boston. Sierra Schwartz went to Cambridge Rindge and Latin high school with the suspect, who's now in custody.
SIERRA SCHWARTZ: The Dzhokhar that I knew at the time was friendly, quiet but not in a - alarming way. He was just - you know, soft-spoken but very - you know, funny, very sweet, wouldn't harm a fly; someone that you would want to talk to.
Al Neuharth, the man who launched "USA Today" against all expert advice, has died at the age of 89. He was the chairman of Gannett newspapers who called himself a dreamer and schemer when he got the idea that satellite communications could make a daily national newspaper popular.
While many universities try to win national attention with their sports programs, one school is dominating a lesser-known competitive arena: speech teams. Bradley University in Peoria, Ill., will defend its U.S. title again this weekend at the National Forensic Association tournament in Huntington, W.Va. Jonathan Ahl reports.
JONATHAN AHL, BYLINE: Cecil Blutcher is on stage, practicing his poetry recitation in front of his fellow speech team members.
CECIL BLUTCHER: Now my face is stuck to lamppost, glued to plate-glass windows.
Back now to our coverage of the tense night and police activity that brought an end to the manhunt for the second Boston Marathon bombing suspect. Franklin Street in Watertown was the epicenter of that massive search. Police and SWAT teams took over the suburban neighborhood looking for 19-year-old Dzhokhar Tsarnaev. Keith Glavish lives nearby. He was in his house while the search unfolded. Thanks for being with us.
This is WEEKEND EDITION from NPR News. I'm Scott Simon. The city of Boston has been through an extraordinary string of challenges this week. The city's famous race was bombed, killing three people, injuring scores of others. The city was locked down for nearly a full day in order to search for the killers.
And of course last night, many Bostonians cheered the news that the second suspect in the marathon bombings had been captured. While the backdrop is tragic, residents across the city permitted themselves a moment of celebration. People were also expressing relief that the lockdown of the city was officially over.
NPR's Chris Arnold visited a lockdown party in Boston and filed this report.
An armored vehicle is driven near Mount Auburn and Melendy streets in Watertown.
Credit Essdras M Suarez / Boston Globe via Getty Images
A heavily armed Boston police officer stands guard in front of the Taj Hotel on Tuesday.
Credit Stan Honda / AFP/Getty Images
A U.S. soldier patrols at Grand Central station in New York on Tuesday. Safety concerns led to stepped-up security at public places and events after the bombings in Boston.
Credit Emmanuel Dunand / AFP/Getty Images
Metro SWAT members hang off the back of a truck as they prepare to search the School and Walnut Street neighborhood in Watertown on Friday.
Credit Darren McCollester / Getty Images
SWAT team members search for the remaining Boston Marathon bombing suspect at an apartment building. One of the two suspects died after a chase and shootout earlier Friday. The second was captured late Friday night.
Credit Mario Tama / Getty Images
A National Guard helicopter takes off in Watertown, Mass., after landing in a shopping mall as part of search operations for one of the bombing suspects.
Credit Stan Honda / AFP/Getty Images
A police officer stands at alert in tactical gear in Watertown on Friday.
Credit Matt Rourke / AP
Members of the Massachusetts National Guard wait on Boston Common for orders Monday evening after the deadly explosions near the finish line of the Boston Marathon.
Credit Michael Dwyer / AP
A man is loaded into an ambulance after he was injured by one of two bombs that exploded during the Boston Marathon on Monday.
Credit Jim Rogash / Getty Images
SWAT team members search for the remaining Boston Marathon bombing suspect at an apartment building. One of the two suspects died after a chase and shootout earlier Friday.