Thornton police are actively searching for a driver involved in a hit-and-run incident that left a pedestrian with serious injuries. In what authorities are calling a deliberate act, the driver reportedly struck the pedestrian after being admonished to reduce speed. According to Denver7, the altercation took place on September 13, around 7:35 p.m., when according to a Thornton PD, the pedestrian “shouted for the driver to slow down.”