William Anthony McNeil Jr. questioned why he was pulled over and refused to get out of the car. An officer smashed his window and punched him in the face, video shows.

A viral video of a February traffic stop shows officers in Jacksonville, Florida, arresting William McNeil Jr. after one of them broke his car window and hit him in the face, prompting an investigation.

William McNeil Jr. beaten by Jacksonville Sheriff’s Office deputies during traffic stop that was captured in a viral video

Footage of William McNeil Jr.'s arrest sparked a social media furor. Sheriff T.K. Waters said more video showed "context."

A cellphone video shows a Jacksonville sheriff's officer punching a Black man in the face during a traffic stop in February.

The Jacksonville Sheriff's Office alleges William McNeil Jr., 22, was reaching for a knife during the traffic stop before officers used force.

The Jacksonville Sheriff’s Office said it has launched an internal investigation into the circumstances surrounding an incident that occurred in February, but was shown in a video posted to social media early Sunday morning.