When the knock at the door came shortly after midnight, Carol & Keith Slater initially tried to ignore the noise, assuming it was just kids messing around or maybe someone at the wrong address.
But as the knocking continued, Carol told Keith he should pop down and see who was at the door in case it was related to their two young children who were staying with Grandparents that night. It might be the police, maybe there had been an accident.
Minutes later, Keith was dead - at just 33 years old - and so many lives changed forever.
