Irving police seek 4th in death of waitress 01/06/2003 From Staff Reports Irving police are looking for a fourth person wanted in the death of a waitress at an Irving Bennigan's. Jennifer Michelle Sanchez, 22, was trying to write down the license-plate number of the car after its four occupants ran out on a $100 restaurant tab early Friday. She died later that day at Parkland Memorial Hospital from head injuries. Jennifer Michelle Sanchez The driver, 18-year-old Sarah Foust of Irving, is charged Saturday on suspicion of murder and driving under the influence, Irving police said. She's in jail...