Tracing the Tsarnaev family roots back to Russia is going to require cooperation between Washington, D.C., and Moscow and of course, as we just heard, this comes at a frosty time in relations between the two countries. NPR's diplomatic correspondent Michele Kelemen joins us. Thanks for being with us.
MICHELE KELEMEN, BYLINE: Thanks, Scott.
SIMON: And first, any signs of cooperation so far?
This is WEEKEND EDITION from NPR News. I'm Scott Simon. Isn't it nice to be able to say time for sports?
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SIMON: The country was focused on tragedy and mayhem this week, but sports abides, including some remarkable tributes to Boston. And the NBA playoffs begin today and run until, I don't know, I think December. Can anyone beat the Heat? For now we're joined by Howard Bryant of ESPN.com and ESPN the Magazine. Howard, thanks so much for being with us.
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.
Soon after federal authorities disclosed that the suspects in the Boston Marathon bombings were Muslims of Chechen descent, many American Muslims began bracing for a backlash. NPR's Jennifer Ludden has more.
This is weekend edition from NPR NEWS, I'm Scott Simon. The intense manhunt of the brothers suspected of carrying out Monday's bombing of the Boston Marathon ended with the arrest last night of a 19-year-old college student, the only surviving suspect. And as Dzhokhar Tsarnaev has been taken into custody and resident in the suburban neighborhood where he was found erupted in cheers of joy and relief.
How do you write something like Partita for 8 Voices, the a cappella vocal piece that is this year's winner of the Pulitzer Prize for music?
"Very late at night," says the composer, Caroline Shaw, speaking with NPR's Scott Simon. "Sometimes it comes from having a sound in your head that you really want to hear, that you've never heard before, and struggling to make that sound happen in any way you can."
Twenty years ago, federal agents clashed with David Koresh's Branch Davidian community near Waco, Texas. The standoff ended with a raid and fire that killed some 80 people. It's remembered as one of the darkest chapters in American law enforcement history.
Two decades later, some of the Branch Davidians who survived the raid are still believers, while a new church group has moved onto the land.
With the house-to-house search over and the living and dead largely accounted for, the town of West, Texas, began the transition from shock and disbelief to communal grieving.
On Friday night, mourners gathered at St. Mary Church of the Assumption to remember the dead. Many of the dead were first responders who were fighting a roaring fire for 30 minutes before the explosion, which was felt 80 miles away in Fort Worth.
Texas Sen. John Cornyn caused a stir when he suggested that there might be many more people missing than thought.