A cell phone video showing a White police officer in Jacksonville, Florida, striking a Black man in the face during a February traffic stop before officers dragged the driver from his car has sparked outrage online as conflicting accounts of the incident have emerged.

William McNeil Jr. is speaking out after his viral TikTok video captured the moment a Jacksonville police officer violently smashed his car window and punched him – an arrest that has stunned viewers and prompted an outpouring of support.