working as a uber driver and a professional truck driver. saipov grew up in tashkent, uzbekistan, living in this apartment building, and in 2010, came to america as part of what s called the u.s. diversity immigrant visa program, for citizens of countries who have not sent many immigrants to the u.s. today, president trump revealed saipov had helped bring many other uzbeks to the u.s. he was the point of contact, the primary point of contact for, and this is preliminarily, 23 people that came in or potentially came in with him. and that s not acceptable. reporter: u.s. officials tell abc news tonight that at least two of those 23 connected to saipov were suspected of possible terror ties. federal agents say saipov was asked about those two men in 2015, but that no case against him was ever opened. brian ross joins us live tonight. and brian, you re also learning that the alleged attacker told police he became radicalized in