Elpidio Reyna, accused of assaulting a federal officer by throwing rocks at passing law enforcement vehicles in California, has surrendered at the U.S.-Mexico border to face felony charges. The incident, which occurred in California, has prompted the FBI to investigate the matter further. Authorities have not disclosed specific details about Reyna’s surrender process or his potential sentencing. The case highlights the ongoing challenges of enforcing federal laws in border regions, where tensions between immigration enforcement and local authorities can often escalate into violent confrontations. This incident serves as a reminder of the serious consequences faced by those who commit acts of violence against law enforcement.