Boston Marathon medical coordinator to retire after almost 50 years working the race

On Marathon Monday, 1,900 volunteers will staff medical tents along the Boston Marathon route and at the finish line. It's a vast operation that has saved lives and helped many thousands of runners and spectators who've gotten sick, injured or just plain worn down along the race course between Hopkinton and Boston. And after it's over, the man who coordinates the medical coverage at the marathon will retire from the role after working the race for almost 50 years. Chris Troyanos started as a volunteer in the medical tents in...