When Barrington High School teacher William J. Palmer tells his at-risk students he can relate to their problems, he's speaking literally. As a teenager, Palmer couldn't balance academics with the pressures of his dysfunctional family and the temptations of the streets. Once a student at Barrington High School, he dropped out before earning a diploma. Palmer's path from dropout to beloved teacher was a long and winding one. He earned a GED, an Associate's...