Police confirm Mutotwe Kafwaya's death after growing demands for information about his whereabouts.
Hakainde Hichilema says he was “truly humbled” by the victory and promised to work for all Zambians.
The leading opposition candidate calls allegations of a planned insurrection "total fabrications".
The electoral commission said violence had "resulted in the theft of marked ballot papers".
Hakainde Hichilema was a shoo-in for a second term but the controversy following Edgar Lungu's death has dented his chances.
Right Reverend Stephen Pedley served as an Honorary Chaplain to Queen Elizabeth II between 1984 and 1998.
The Trump administration sees the aid as more transactional - but some say it is not a fair trade.
Edgar Lungu's family and the Zambian government remained in dispute 12 months after he died.
Several black Zambians tell the BBC they sometimes feel like they are second-class citizens in their own country.