Today, April 15, football fans up and down the country have been paying their respects to the victims of Hillsborough on the 28th anniversary of the disaster.
Ninety-six Liverpool supporters died in a crush at the start of their team's FA Cup semi-final with Nottingham Forest, as chaotic policing and inadequate stadium security combined to turn the Leppings Lane terraces into a deathtrap.
Ray Lewis, the referee on duty that day, has told his story to talkRADIO, revealing that he first thought it was just standard terrace overcrowding - providing a telling insight into the endemic safety problems which blighted football before the introduction of all-seater stadia.
Lewis also told Paul Ross how the horrific reality quickly dawned on him, and how he recovered from the disaster in its immediate aftermath.
Listen to the interview above