This is just awful and my heart goes out to his family. My son played cricket for his station when he was in the RAF and during a match a chap took a ball to the head and died on the pitch, despite immediate medical attention being given. Both teams were distraught, and the poor bowler collapsed. He was not wearing a helmet, just a cap, and, until then, neither did my son. That soon changed - my DiL said if he didn't buy one immediately she would put all his kit in the garden and burn it. The poor man who has just died was wearing a helmet of course (sensibly everyone does these days) but I understand that the ball found a gap round the back of his head. A freak accident that no-one, sadly, could have foreseen.