. ♪ >> hello and welcome to "dateline," keith reed was a school superintendent, respected by studentswhen he didn't show, investigators would take a hard look at keith's love life for clues, and another person to help detectives piece together this puzzle. here's dennis murphy with "at close range." >> reporter: winter comes early and stays late in far western new york. the farmlands near chautauqua lake, tilled by amish and dutch families, are encased in snow and ice for months at a time, but in this place of frozen stillness, the hottest of passions, boiling jealousy, came to call one day, and tiny clymer, 1700 residents in the southwest part of the country, county, is still shaking off the shock of it all. joe gerace is the long-time sheriff. >> my 35 years in law enforcement, can you ever remember a homicide in clymer? never. >> it began quite simply. the new school superintendent in town went missing one weekend, just a few weeks into the school year in september 2012. keith reed, 51 years old, was a long-time educator who had landed in the sweet spot of his professional career.