(Molalla, OR) -- A man who assaulted a Molalla Police officer has been sentenced to prison. Last July, the officer was checking on a tent at a city park. He saw Montgomery Gardner inside with a meth pipe. He asked Gardner to come out of the tent and when he did, Gardner was armed with a bowie knife. He attacked Officer Justin Brenner knocking him to the ground, hitting him in the head and strangling him. Brenner told the judge it had a major impact on his career. He's still dealing with injuries and remains on light duty at work. Gardner was sentenced to two years in prison.