Man Under Terror Surveillance Killed in Boston

Two prominent terror-related stories out of Boston today:

• Suspect killed: A police officer and an FBI agent shot and killed a man who had been under surveillance as a terror suspect this morning, reports the Boston Globe. The man identified as Usaama Rahim pulled a "military-style" knife when confronted for questioning in front of a CVS store, says the city's police chief. “We believed he was a threat," says Commissioner William Evans. "The level of alarm brought us to question him today. I don’t think anybody expected the reaction we got out of him.” Authorities didn't provide details on the nature of the threat, but CNN reports he was being watched by the US Joint Terrorism Task Force over alleged links to ISIS. On Facebook, Rahim's brother posted that he got "shot in the back" and had been talking to their father on the phone when the confrontation took place.

• Tsarnaev friend: A college friend of Dzhokhar Tsarnaev was sentenced to six years in prison today after pleading guilty to obstruction of justice and conspiracy, reports the AP. Dias Kadyrbayev apologized in court for not calling police after seeing Tsarnaev's photo released by the FBI. After texting Tsarnaev, Kadyrbayev and two other friends went to Tsarnaev's dorm room and removed the bomber's backpack and computer. "I really can't believe that I acted so stupidly," he told Judge Douglas Woodlock.

(More Boston stories.)