A federal prosecutor in Minnesota has been fired after he was investigating an Immigration and Customs Enforcement (ICE) officer for potential civil rights violations. Assistant U.S. Attorney Matthew Evans was looking into ICE officer Christian Castro, who was involved in the shooting of a Venezuelan immigrant earlier this year. While the Justice Department has charged Castro with making false statements about the incident, the indictment remains confidential. This charge is considered less severe than criminal charges that could be brought if Castro had violated someone's constitutional rights while acting in his official capacity. According to ProPublica, Evans informed the attorneys for Julio Cesar Sosa-Celis, the man who was shot, and other victims that Castro would likely only face charges related to false statements. This would result in lighter penalties compared to charges tied to civil rights violations. ProPublica cited an email from Evans to the attorneys in which he said he strongly opposed the decision, stating he "objected in the strongest possible terms and fought it as hard as I could. It wasn't enough." Multiple sources told CBS News that Evans is now under investigation by the Justice Department. Two of these sources indicated that the investigation centers on allegations that Evans may have leaked confidential information. CBS News has contacted Evans for a response, but he has not yet commented. The situation has raised questions about the handling of the case and the internal dynamics within the Justice Department. Evans' firing and the ongoing investigation suggest that there may be internal conflicts or concerns about how the case was managed. As the story develops, more details may emerge about the reasons behind the prosecutor's removal and the nature of the investigation into his conduct.