By Alex A man with an assault rifle was shot in a police station parking lot and is now receiving treatment in the hospital. Newly released video detailed the encounter as investigations into the police shooting continue. On Dec. 5, a police officer in Rialto, California, pulled into the parking lot around 4:30 p.m. in a marked vehicle. He was closely followed by another vehicle. A police employee walked up to talk with the officer. The officer saw another person carrying an AR-15 rifle in the parking lot, Police Chief Mark Kling told local media. That is when the suspect ran back to the other…