"In the wake of Williams' death at his home here Monday, fans around the world have struggled to understand what could have led a man whose thousand-megawatt comic persona had brought so much joy to millions to such depths of despair. But Williams' closest friends and colleagues knew well that the beneath his manic, Technicolor exterior, the actor had battled depression for years. In recent months — as Williams wrestled with the cancellation of his CBS TV series The Crazy Ones and fought to maintain a sobriety that had at times proved fragile — those friends could see that he was losing that fight. … In early July, Williams checked himself into the Hazelden addiction treatment center in Center City, Minn. He had not fallen off the wagon, his publicist said at the time, but was instead struggling to hold himself together as he crumbled under the weight of depression."