"Thank you Officer Williams and Officer Book for representing yourselves and our department the way you do", Knoxville Police Chief David Rausch said in 2015.
Knoxville police say an officer was shot Thursday night in front of a northeast Knoxville shopping center and the suspect is still on the run.
WATE 6 On Your Side has a crew on the scene.
Authorities were searching for 31-year-old Ronnie Lucas Wilson, who has an unrelated, outstanding warrant for violation of probation for aggravated assault and who should be considered armed and unsafe, Rausch said.
The Tennessee Bureau of Investigation has added the man suspected of shooting a Knoxville police officer Thursday night to its Top 10 Most Wanted list.
Rausch said that enforcement agencies across the state are "very familiar" with Wilson. As Knox News reports, Wilson then got out of his auto and opened fire once again on Williams. Williams suffered a wound to his shoulder.
Investigators recovered the suspect's vehicle early Friday. KPD Chief Rausch said Wilson used a shotgun.
"Obviously, we are seeking an attempted murder warrant on him as we speak for what he did", Rausch said. So we ask that folks if you see the vehicle, if you know this individual, then do not intervene. "Let law enforcement handle this".
KnoxNews reports that Wilson is a member of the Aryan Nations, a white supremacist group. He was given a three-year prison sentence after he was convicted of aggravated burglary in 2011. Facebook photos reveal a large swastika tattoo on his body as well as a Celtic cross with the words "White Pride Worldwide", according to the Knoxville News Sentinel.
"If he is going to take a shot at an officer, he won't hesitate to shoot at anyone else", Rausch told reporters.