Police Chief Lynn Rowe fired Taylor on July 11. Greene County Prosecuting Attorney Darrell Moore charged him with third-degree assault on Thursday.

"I can understand the officer being upset because booking took longer than usual, because this guy lied to him originally about who he was and the booking had to be done again, but that is no excuse to go around hitting on people," said Moore.

Before being fired, Taylor had been with the department for 11 years.

"No law enforcement officer, especially anyone with any experience, should look at this and say this is okay," said Moore.

Rowe agrees.

"By policy and law, officers use force necessary to overcome force being presented. That's very clear but we also ask: don't go beyond what's necessary to overcome that force,” said Rowe.

Rowe says Taylor crossed the line in how he treated the inmate.

According to a detective’s probable cause statement filed in court with the charge, jail employees say they saw Taylor hit inmate John Sedersten with a closed fist, use his knee to strike Sedersten in the side, knocked the inmate to the floor, hitting Sedersten’s head on the floor, and then “had his knee on the side of Sedersten’s face/head and then struck him on the right side of his face/head after he (Sedersten) responded to several questions.”

The prosecutor says this was all caught on tape.

"Most of the jail staff was just horrified,” said Moore.

In the probable cause statement, there are witness accounts from four jail employees but none of them stepped in.

"One of my concerns is why would an officer ask for a special cell to take someone. If that is granted, then why, in the middle of the beating, why isn't there immediate intervention?" Moore asks.

Related to that, Moore says he recommended the sheriff take a look at one jailer's behavior, adding it wasn't criminal but it was questionable.

Sheriff Jack Merritt refused to comment.

Taylor is scheduled to be in court in a couple months.

When asked why the officer was fired before he went through the court process, Rowe said he looked at the video of the incident, thought it was unnecessary force, and fired him. Now, he says, the burden of proof for the criminal side lies with the prosecutor.