Franklin Jair Lopez was charged in March with aiding and abetting unlicensed firearms dealing in connection with three controlled purchases by an undercover Daly City police officer between November 2025 and February 2026. According to prosecutors, Lopez provided countersurveillance and supplied firearms to co-defendant Isaac Gonzales-Chavac, who sold six weapons to the undercover officer. During a March 3 search of Lopez's San Francisco residence, federal agents discovered two privately manufactured firearms under his bed, including a machine gun.
U.S. Magistrate Judge Lisa J. Cisneros found that "the government has demonstrated by clear and convincing evidence that there is no condition or combination of conditions that could be imposed on Lopez that would reasonably assure the public's safety." The judge was particularly troubled by videos found on Lopez's phone showing him and associates engaged in what she called "very troubling behavior," including one clip where a passenger sexually assaulted an unconscious woman while Lopez "appears to laugh and express approval." Another video allegedly showed Lopez filming an associate assault a random person at a CalTrain station.
The detention order came despite Pretrial Services' recommendation that Lopez could be released with conditions. Lopez had been arrested just one day after the first controlled buy in November 2025 for possessing a loaded firearm, and was released on state charges with an order not to possess weapons. However, prosecutors say he continued participating in gun sales while on release, undermining his credibility for supervised release.
The ruling highlights federal prosecutors' aggressive approach to illegal gun trafficking cases, particularly involving privately manufactured "ghost guns" that lack serial numbers. Lopez's co-defendant Gonzales-Chavac was granted release, suggesting the court viewed Lopez as playing a more central role in the alleged conspiracy. The case is part of broader federal efforts to crack down on unlicensed firearms dealing in urban communities.