Well, this isn't exactly a surprise

The first part of the article covers the events on the video. It's about 3/4 of the way through the article that we find these interesting tidbits about Officer Steroid:

Canton’s internal affairs unit has investigated 16 complaints involving Harless dating back to 2000.

He was reprimanded in one 2003 case. Harless and another officer were exonerated of using excessive force, but were given a letter of reprimand for not activating the in-car video camera at the scene per department policy.

SIXTEEN IA investigations in 11 years. That's one and a half a year, or roughly one instance every 9 months. Unfortunately there's no information on whether there were 16 exonerations, 16 convictions, or whatever. It is very interesting to note that Harless has been officially reprimanded for not turning on the dash cam - as well as having at least one excessive force claim against him already.

This guy's a bad cop, and the Canton PD has known about it for a while.

Added: Lawdog expresses his opinion; it's about what you'd expect.