Alvonta Pinex was a 27-year-old Black man who died on September 24, 2016, in Chicago during an encounter with the Chicago Police Department. Officers Gildardo Sierra and Raoul Mosqueda said they were patrolling the South Side when they saw a vehicle they believed linked to a prior crime. They attempted to stop the car, driven by Pinex; the vehicle slowed then accelerated, and officers blocked it with their truck. Officer Sierra fired his weapon and fatally shot Pinex.

Controversy followed. The officers asserted Pinex had a gun and posed a threat, but that claim was disputed. Investigators found the car Pinex was driving did not match the wanted-vehicle description, and the officers had not radioed the stop or requested backup. Officer Sierra, who had been involved in other shootings, faced scrutiny but remained on the force. The case drew public outcry and became part of broader debates over police conduct and use of force in Chicago.

If anyone knew Alvonta Pinex or was present that night, please share information that could clarify what happened.