So... there was a rather bizarre (and holy fuck excessively violent) police incident in Cleveland.
Officer spots a couple people in a vehicle near a homeless shelter acting suspicious. He believes they're involved in drug activity. When he approaches the vehicle, they speed away. He doesn't give chase. He doesn't report the incident. He goes into the homeless shelter and starts threatening to arrest people if they don't give him information about who was in that vehicle.
Another officer (unaware of the above) spots the fleeing suspects shortly after and gives chase. Soon there are 115 officers involved in the chase. Only 3 of them had permission to pursue (which is a requirement). Some had even been told to drop the pursuit and ignored the order.
So many officers were involved in this pursuit all communicating with each other over their radios, that the information swapping turned into a high-speed high-adrenaline game of telephone. Over the course of the 22-minute chase, everyone's perception of danger continually escalated. Officers involved in the chase believed that the suspect had rammed police vehicles, blown a tire, and fired weapons. None of these things turned out to be.
When they finally stopped the vehicle in a middle-school parking lot, police surrounded the suspect vehicle and began firing their weapons. The scene was so disorganized that police were crossfiring at each other, which turned into the belief that the suspects were returning fire. So this turned into about 18 seconds of guns blazing. Over 140 shots fired. One officer climbed on top of his patrol car and fired 49. When the smoke cleared, both suspects were dead, both were completely unarmed, tons of damage had been done to police equipment all by other police, and it was a miracle none had shot each other.
Have a link.