An allegedly reckless driver who was chasing after his girlfriend in his speeding car veered off the roadway December 23 and mowed down a 43-year-old single mother of four as she stood outside her Houston, Texas, home, authorities have confirmed in a statement. It was at approximately 4:30 p.m. when police allege a 34-year-old man pursuing his girlfriend's speedy Toyota sedan lost control of his own car and slammed into Xochitl Santos, who was found by first responders unresponsive in her driveway, pinned beneath the man's vehicle.