he had an implantable cardioverter defibrillator. the walls of his heart were too thick (hypertrophic cardiomyopathy). it was a birth defect. its just harder for the muscles in your heart to pump blood, most people dont know they have it until they have a heart attack. which chase did almost 4 years ago. he fell on his bike on the side of the road and someone found him. he was declared dead for half an hour or so. as i learned from kevin however, chase got to meet the people who saved his life just this past summer. i remember seeing the gap in our facebook conversation, he just stopped answering for almost a week, then joked "i basically died". then proceeded to ask about medium format, something he could learn and be patient with since he could not spike his heart rate doing anything that uses stamina.