Tributes have been laid in Sheffield and Nottingham with police investigating the "freak accident" which killed ice hockey player Adam Johnson.Johnson, 29, was playing for the Nottingham Panthers in a Challenge Cup match at the Sheffield Steelers when he reportedly suffered a slashed neck following a collision.The crowd of 8,000 spectators watched in horror at the Utilita Arena as desperate attempts were made to save the American's life.

Tributes have been laid in Sheffield and Nottingham with police investigating the "freak accident" which killed ice hockey player Adam Johnson.Johnson, 29, was playing for the Nottingham Panthers in a Challenge Cup match at the Sheffield Steelers when he reportedly suffered a slashed neck following a collision.The crowd of 8,000 spectators watched in horror at the Utilita Arena as desperate attempts were made to save the American's life.