Officer Eric Casebolt resigned from the McKinney police force Tuesday, three days after a video of him violently throwing an unarmed 15-year-old girl to the ground was published on YouTube.

Casebolt’s attorney, Jane Bishkin, confirmed the news to WFAA Tuesday afternoon. Casebolt was suspended on Sunday, one day after 15-year-old Brandon Brooks posted a seven-minute long video of the officer screaming at and arresting children at the McKinney community pool in Texas.

UPDATE 6:53 pm: At a press conference this evening, McKinney Police Chief Greg Conley called Casebolt’s actions “indefensible.”

“As the video shows, he was out of control during the incident,” he said. “I had 12 officers on the scene and 11 of them performed according to their training.”

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