Everything came to a screeching halt. On Wednesday afternoon, I received the news that my son Emmett’s best friend had been in a horrific accident. As he was riding his bicycle to work, he collided with a van. He suffered massive brain injuries and underwent emergency surgery at Harborview, where he now floats in a coma in the intensive care unit. On this particular day, my wonderful city was already in the grips of sorrow and shock over the senseless shootings that took the lives…