Jonathan Martin co-authored “The Other Side of Mercy: A Killer’s Journey across the Great Divide.” The book is based on the Seattle Times series that won the 2010 Pulitzer Prize for its coverage of the ambush slayings of four Lakewood police officers. Martin was a reporter on the award-winning team. In this book, the Martin and co-author Ken Armstrong go deeper to tell a story of our nation’s racial divide, the political risks of mercy, and missed opportunities to stop a man going mad.