FBI identifies British national as suspect who took hostages at Colleyville, Texas, synagogue

Kennedy International Airport, a federal law enforcement source told CBS News.Two U.S. officials told CBS News that Akram did not appear on any U.S. terror watch lists, although they are still looking and working on name differentiations. Authorities did not reveal a specific motive, but the FBI said it believes the hostage-taker was "singularly focused on one issue, and it was not specifically related to the Jewish community." A source close to the incident told CBS News that they believe the hostage-taker had asked for the release of Aafia Siddiqui, a Pakistani woman serving an 86-year sentence in federal prison for trying to kill U.S. officers in Afghanistan.White House national security adviser Jake Sullivan called the incident an "act of terrorism" and an "act of anti-Semitism" in an interview on "Face the Nation" Sunday morning."We have the Department of Homeland Security, the FBI and law enforcement and intelligence agencies working intensively to get a full picture of what this person's motives were and whether or not there are any further connections," Sullivan said.Homeland Security Secretary Alejandro Mayorkas tweeted Sunday that the "immediate crisis is over.