2015 – A nine-year-old bat boy is killed when he is struck in the head by a follow-through swing while standing near the on-deck circle at the National Baseball Congress World Series in Wichita, KS. The death occurs even though the boy is wearing a helmet and is immediately administered first aid by the home plate umpire, a trained paramedic.

On August 1, 2015 — 2015 – A nine-year-old bat boy is killed when he is struck in the head by a follow-through swing while standing near the on-deck circle at the National Baseball Congress World Series in Wichita, KS. The death occurs even though the boy is wearing a helmet and is immediately administered first aid by the home plate umpire, a trained paramedic.

Source:
Baseball Reference August 1
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game