Federal agents in plainclothes detained an Evanston, Illinois, resident on Sunday after deciding he resembled a fugitive they were seeking. When the man refused to produce identification, agents handcuffed him, leaving him on the ground with injuries to his head, neck, and teeth. They then fingerprinted him, discovered he was a US citizen who was not their target, and released him. He was later documented at a hospital. The agents fled the area when protesters gathered. The Evanston Police Department's statement paints a scene that has become disturbingly routine under the current immigration enforcement regime: unmarked vehicles, plainclothes agents with "police" vests, no local coordination, and a US citizen left bleeding on the pavement. The agent who spoke to arriving officers attributed blood on his own hands to the man's resistance during handcuffing — a framing that shifts culpability to the victim of a mistaken-identity stop. The same day, ICE agents shot and seriously wounded a 28-year-old Venezuelan man during a traffic stop in Austin, Texas. The man's lawyer said he was making a DoorDash delivery. Austin's mayor called for his police department to provide "clear, third-party eyes" on the investigation — a tacit acknowledgment that federal self-investigation is not credible. These incidents sit atop a rising body count. In July, ICE fatally shot 52-year-old Lorenzo Salgado Araujo in Houston as he drove his construction crew to a job site, pursued by unmarked vehicles. In January, US citizens Renee Good and Alex Pretti were fatally shot by federal agents days apart in Minneapolis. The Department of Homeland Security did not respond to requests for comment on the Evanston case. The operational pattern is consistent: plainclothes agents in unmarked cars, no coordination with local police, physical force deployed on misidentified individuals, and departure from the scene before accountability can attach. This is not a rogue-agent problem. July saw a record 50,000 arrests under ICE's expanded mandate, with more than half of those detained having no criminal record, according to the Deportation Data Project. The constitutional implications are severe. The Fourth Amendment's protections against unreasonable search and seizure apply to all persons on US soil, citizen or not. When federal agents operating without local coordination can detain, injure, and release a citizen without consequence, the enforcement apparatus has decoupled from legal constraint. The agents' stated reason for leaving — fear of protesters — suggests awareness that their conduct would not survive public scrutiny. What emerges is not immigration enforcement but a domestic paramilitary operation with expanding rules of engagement, declining accountability, and a growing list of casualties that includes the citizens it claims to protect. The 20-year trajectory is the normalization of federal force outside civilian oversight structures.