A Madison police officer fatally shot Corey Ruiz during an attempted arrest, prompting protests and an investigation by Wisconsin’s Department of Justice. The case matters because footage of the confrontation circulated widely online and has renewed local concerns about police accountability and racial justice.

Police said Ruiz injured an officer with a knife while resisting arrest; protesters and his family’s representatives have questioned whether lethal force was necessary. Four officers involved were placed on administrative leave while investigators review the incident, which occurred in the same neighbourhood where police killed Tony Robinson in 2015.