I don't know if this was posted before because it happened in 2010, but with all the negative things about police it's worth repeating a story of a good 'cop'.
The full story;
She first noticed a suspicious person "driving towards the back of the building, she pulled alongside the car to ask if the man "was lost" and "what he needed". The driver claimed that "his brother worked here". The Officer then entered the building, went to her office, checked in and proceeded to walk with the principal to the front office to confront the man, Thomas Richard Cowan (aged 62). He waited briefly to speak with the principal, Melanie Riden. The gunman pulled his weapon after talking briefly with the principal, and Ms. Gudger immediately pulleOn August 30, 2010, around 8:30 a.m., The Student Resource Officer assigned to the school, Carolyn Gudgerd her issued pistol and distracted him long enough to get the principal, Melanie Riden, to safety. The Officer ordered him to put his gun down. After leading him to an empty room, then a hallway, he began rambling about the Government and political issues. He attempted to pull a fire alarm in order to "get these kids out of here". Gudger kept talking to him while holding her pistol on him. His patience seemed to wane and he said, "lady, I don't want to have to shoot you". After Cowan closed one eye, and appeared to contemplate firing, Gudger heard an order from the police. "Sheriff's office! Put the gun down!". The Sullivan County Sheriff's Office had arrived. The man aimed at officers and was then shot when he aimed his weapon at the S.R.O. The suspect was the only person injured and was airlifted to a local hospital, where he later died.