Hundreds of volunteers and law enforcement officials are still searching for missing college student Lauren Spierer. Spierer, 20, of Edgemont, disappeared more than three weeks ago after a night of partying at the University of Indiana, where she is a student. Search coordinator John Summerlot, who says he knew Lauren, says he is trying to assist in any way possible. "I was Lauren's residence manager her freshman year, so I showed up to help out and I just ran with it from there," he said. Local volunteers have also brought dogs onto the scene to see if they can find any clues. Spierer's family is offering a $100,000 reward for any information leading to their daughter's return.Last scheduled press conference held in missing student case