A 60-year-old man was run over by a CTA bus late Sunday on the Southwest side. The man had been knocking on the bus in attempt to get the driverâ€™s attention in order to board when he tripped and was run over by the back wheel of the vehicle. The bus continued until the driver was alerted by a passenger that the man was down. Stephanie Parrot was on her commute home when she witnessed the event. According to Parrot, the manâ€™s arm was completely crushed. The ambulance arrived and took him to a hospital for treatment.