>> Authorities are looking into the possible motives of 27-year old Akayed Ullah, the Bangladeshi man they say detonated a homemade bomb during the morning rush Monday, in New York's busy Port Authority bus terminal. Mark Hosenball says the Brooklyn-based electrician, who injured himself and three others in the attack, was not on law enforcement's radar.
>> They do believe that he was somehow radicalized after he arrived in the United States, in fact possibly quite recently, by watching stuff over the Internet, presumably things like Islamic state videos or videos by other groups.>> So far, investigators think Ullah acted alone, which is in keeping with a trend of other similar attacks by self-radicalized perpetrators.
He last visited Bangladesh on September 8th and had no criminal record there, according to the country's police chief. Ullah was in the US on an F-4 visa, which allows an immigrant to sponsor other family members.>> I've been told authoritatively by US government officials, that Ullah was a legal immigrant to the United States, came here about seven years ago.
And his visa was granted on the grounds that he had family member's here. This certainly could become an issue politically in the United States.>> White House Press Secretary Sara Sanders, calling attention to his status at the White House daily briefing.>> The President's policy has called for an end to chain migration.
And if that had been in placed, that would have prevented this individual from coming from the United States.>> Officials have no evidence so far that Ullah had any contact with Islamic State, or other militant overseas.