A community college professor is being held without bail after a judge ordered him held without bond after he was arrested last year.
In January, Jose Luis Garcia was arrested by a federal agent in Texas.
He has been charged with trafficking weapons and firearms, and the FBI says he was also involved in the shooting deaths of three members of the community.
The government said Garcia also helped organize a weapons trafficking ring in Mexico, where his father had been an illegal alien.
A grand jury indicted Garcia in March.
Garcia has been jailed without bail, and he has not commented publicly on the case.
On Wednesday, a federal judge ordered Garcia held without bonds and ordered him to be in jail for six months.
Garcia was also charged with drug trafficking and money laundering, but the charges were later dropped, and prosecutors have said the case against him is still ongoing.
He was scheduled to go on trial in June.
The U.S. Attorney for the Northern District of Texas said Garcia was being held on $1 million bail, but that could be reduced if the judge agrees to release Garcia, who was also facing a felony charge of obstruction of justice.