An Indiana teacher and coach Dan Runyan collapsed while on a run and died two days later.
https://www.yahoo.com/news/coach-dropped-100-pounds-over-170050580.html
Video Transcript:
http://abc13.com/society/coach-dies-after-run-with-students/3043044/
Another profile/tribute on Runyan who used to be 340-pounds and on the cusp of diabetes, but changed his diet and became a runner to turn his health around. He was training for the 2018 Chicago Marathon: