On a Friday night in January, several dozen people gathered outside Karen Buckner's house. Bundled against the freezing weather and wearing face masks, the group joined her on a half-mile walk to the football field parking lot at Glenbrook North High School. One week before, a memorial for her son Dylan Buckner stood at the site. Flowers, sports jerseys, candles and a bottle of pink lemonade — a drink he was often seen with after football workouts — had been set up in memory of the player. Dylan Buckner, 18, died by suicide Jan. 7. "We love you Dylan," the group shouted in unison, before walki...