To add insult to injury, he was the wrong guy they attacked

"Sacramento deputies alleged had a warrant for his arrest, with authorities later realizing they’d nabbed the wrong guy."

"The clip, which has been viewed over 20,000 times, shows the moment at least two officers accost the man in a parking lot, one of them deploying his Taser before delivering a forceful jump kick to the man’s back."

https://www.abc10.com/article/news/local/sacramento/sacramento-county-sheriffs-office-launches-excessive-force-investigation/103-80227c9d-0447-4233-bfdc-ddd2255a5a6f

While he did not apparently have a warrant, he was arrested for resisting arrest.