Footsteps in the park - who murdered Geoffrey Houghton-Windsor?

Beaulieu Heights was populated with about 20 people.  It was dark and the densely populated woodland hid the glow of distant streetlights.  Someone was heard running through the walkways, and shortly afterwards, in the early hours of the morning in the summer of 2002, Geoffrey Houghton-Windsor was found lying unconscious beneath a tree in a park in south London.  A piece of jewellery was found lying beside him.  Despite interviews and years of unanswered questions, no arrests or convictions were ever made.  To this day - more than 20 years later - the murder remains unsolved and the park still carries the shadow of that night