Garcia Venegas began filming after his undocumented brother asked agents for a warrant. In response, the footage shows, agents yanked his brother to the ground, shoving his face into wet concrete. Garcia Venegas kept filming until officers grabbed him too and knocked his phone to the ground.

Other co-workers filmed what happened next, as immigration agents twisted the 25-year-old’s arms. They repeatedly tried to take him to the ground while he yelled, “I’m a citizen!” Officers pulled out his REAL ID, which Alabama only issues to those legally in the U.S.

But the agents dismissed it as fake. Officers held Garcia Venegas handcuffed for more than an hour. His brother was later deported.