Brittany Maynard, a 29-year-old woman diagnosed with incurable brain cancer, committed assisted suicide at her home in Portland, Oregon on Saturday evening by swallowing a fatal dose of barbiturates. She had previously acquired the drugs legally by prescription under Oregon's controversial assisted suicide law. "Goodbye to all my dear friends and family that I love," she wrote on Facebook. "The world is a beautiful place, travel has been my greatest teacher, my close friends and folks are the greatest givers. I even have a ring of support around my bed as I type … Goodbye world. Spread good energy. Pay...