The last moment Tyler Moon remembers clearly in the Twin Cities 10-Miler on October 6 was seeing his parents and fiancée around the first mile. After that, he just has flashes of feeling off and struggling to breathe properly, followed by waking up in the ER with cuts on his face and a heavy, painful chest. Despite never having any heart issues in the past, the 25-year-old had experienced ventricular tachycardia, an irregular heartbeat that caused reduced blood flow throughout his body. Just after the 8-mile mark, the lower chambers of his heart were getting no blood at all, so...