Spectator Died

At an indoor athletics event in Colorado, America, a spectator was killed by a hammer that was thrown through certified barriers and hit him. The spectator was a 57 year old man, hit by the hammer while trying to shield his family members. 

This is a terrible accident. We hope the reason why the hammer could pass the barrier can be found out, so the fault can be sorted out. We also hope that if the man had a dog, this dog will come with losing him.