According to a family statement,Â John Smyth QCÂ suffered a sudden heart attack and died on Sunday in Cape Town at the age of 77.
Police had been planning on questioning him over allegations that he beat children in the 1970s and 1980s while he was a leader at the Iwerne Trust camps, where he was a colleague of the Archbishop of Canterbury.
Officers inÂ HampshireÂ had passed a preliminary file to the CPS and were preparing to ask him to return voluntarily to the UK for questioning.
Among the up 22 men to accuse Mr Smyth is Andrew Morse, who said he was subjected to after-prayer beatings as a boy between 1978 and 1982.
Speaking to the Daily Telegraph, he said: '˜I would have forgiven Smyth. I deeply regret that I never had the chance to tell him so.
'˜I also regret that I'll never get to see him brought to justice. Doing so would have completed my circle of abuse.
'˜I hope instead to see a change in the law: the introduction of mandatory reporting, so that anyone who suspects abuse is obliged to inform the authorities.
'˜In my case it would have made all the difference. I hope I live to see the day it will do so for others.'
Other accusers levelled some blame at the Archbishop of Canterbury, Justin Welby, for failing to expose the abuse.
Mr Welby, who worked as a dormitory officer on camps in the late 1970s, insisted he wasÂ unawareÂ of the allegations at the time.
Hampshire Constabulary confirmed a preliminary file had been sent to the CPS requesting advice and that they were making arrangements for Mr Smyth to return to the UK for interview on a '˜voluntary basis'.