The man accused of selling a gun to the North Texas synagogue attacker will stay locked up. A federal judge issued the order regarding Henry "Michael" Williams, saying he was a danger to the community and a flight risk. Federal prosecutors argued Williams should have known Malik Akram was going to hold people hostage when they met last month for the sale. Akram later attacked Congregation Beth Israel in Colleyville holding four people hostage. The hostages were later able to escape and Akram was shot to death by the FBI. Williams is accused of being a felon in possession of a handgun. He's expected to go to trial in April.