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June 2, 2015

Questions after black Muslim man killed by Boston police

US authorities say Usaama Rahim was under surveillance by terrorism investigators.

Police and FBI search the home of a man who was under investigation by the U.S. Joint Terrorism Task Force in Everett, Massachusetts, USA 02 June 2015. (EPA/CJ GUNTHER)

US Twitter users are questioning the official account of the shooting of a black Muslim man by law enforcement on Tuesday.

Boston's police commissioner told reporters on Tuesday that Usaama Rahim had been shot and killed earlier in the day by a police officer and an FBI agent. Authorities say Rahim was under surveillance by terrorism investigators and threatened the officers with a military-style knife when they tried to question him.

Officers reportedly opened fire on Rahim when he refused orders to drop his weapon.

Many online shared a Facebook post from a man identifying as Rahim's brother, Ibrahim Rahim, a local imam.