He believes there must be someone in the Island who knows who bludgeoned the 20-year-old to death in a St Clement field in 1966.
‘It is time to break 40 years of silence and come forward,’ said the businessman, who wishes to remain anonymous.
‘I have daughters who are a similar age to the murdered girl and it is just horrendous to think that her family cannot get closure.
She suffered such a horrific death and I hope the reward will encourage anyone with information to come forward after all these years.’ Miss Hoeoek is thought to have been picked up from a bus stop in Georgetown on New Year’s Eve, taken to a field near Clos de Roncier, in St Clement, and beaten to death with a blunt weapon.
Her skull was smashed to pieces.