Federal Charges Dismissed Against Marimar Martinez After Government's Own Evidence Contradicts CBP Account

The U.S. Attorney’s Office for the Northern District of Illinois moved to dismiss with prejudice all criminal charges against Marimar Martinez — the 30-year-old U.S. citizen and Brighton Park resident who was shot five times by CBP Agent Charles Exum during Operation Midway Blitz on October 4, 2025. The dismissal with prejudice bars refiling. The government had charged Martinez with assaulting federal officers, claiming she rammed Exum’s vehicle; the government’s own body-camera footage and text messages from Exum contradicted that account. U.S. District Judge Georgia Alexakis had already raised concerns about the government’s handling of evidence — specifically that Exum’s Chevrolet Tahoe had been released from FBI custody and driven approximately 1,100 miles to Exum’s home state of Maine before defense inspection, while Martinez’s and a co-defendant’s vehicles were retained in Chicago. The criminal investigation into Exum’s shooting of Martinez was referred to the U.S. Attorney’s Office for the Northern District of Indiana (South Bend) to avoid the conflict of interest created by Exum’s role as a government witness in the now-dismissed Martinez case. No charges against Exum had been filed as of February 2026. The case represents the first documented instance in the 2025–2026 “cover-up architecture” pattern of federal-evidence mishandling following federal-agent use-of-force incidents in major U.S. cities.