Prosecutor in Texas Quits Aryan Case He steps down following murder of DA, assistant By John Johnson, Newser Staff Posted Apr 2, 2013 7:06 PM CDT 65 comments Comments (Shutterstock) (Newser) – One of the theories floating around about the murder of a Texas district attorney and one of his prosecutors is that the Aryan Brotherhood of Texas is behind the killings as revenge for prosecution. If so, the group can consider its message received. A federal prosecutor has just resigned from a big racketeering case against the white supremacist group in Houston, reports the Houston Chronicle and Dallas Morning News. The US attorney dropped out over what both papers call "security concerns." Another attorney from the Justice Department is heading from DC to Texas as a replacement. “He’s obviously made a decision based on something,” says one of the defense attorneys, who described himself as a good friend of the prosecutor who quit the case.