article_snippet.sent: Robert Bates, 73, appeared in Tulsa district court on Tuesday and pleaded not guilty to second-degree manslaughter in the death of Eric Harris, who was killed during a botched sting on April 2.
article_snippet.sent: Heading to court: Robert Bates, left, is seen walking to court on Tuesday morning with Robert Bates attorney Corbin Brewster, right, before Robert Bates entered Robert Bates not-guilty plea in the death of Harris' earlier this month . '
article_snippet.sent: Bates, a Tulsa County volunteer, shot Harris, 44, after the man was confronted during an undercover gun-sale operation and ran past the man.
article_snippet.sent: Video of the incident shows Robert Bates chasing after Harris.
article_snippet.sent: Charged: Bates (left in his mug shot) shot Harris (pictured right) and faces four years in prison if convicted .
highlights_snippet.sent: Tulsa reserve deputy Robert Bates was silent as Tulsa reserve deputy Robert Bates appeared in court in Tulsa on Tuesday and pleaded not guilty to 2nd-degree manslaughter .
  