Dr. Guan Zhu, a professor at Texas A&M University, was driving his Toyota Sienna minivan north on Wellborn road around 2:30 Tuesday afternoon, coming to a stop at the Rock Prairie intersection when a cement truck driver coming from the opposite direction ran the red light and lost control, causing his truck to roll over and smash into Dr. Zhu's van. Watch the video !! Unbelievable the Dr. and truck driver walked away !!