Erik and Lyle Menendez are currently serving life sentences in state prison without the possibility of parole.

It beat London’s National Portrait Gallery, Sheffield’s Park Hill Phase 2 and the King’s Cross Masterplan in the capital, to the prize.

Shannon, 26, was presented with the Inspirational Award by William on Wednesday as Centrepoint, the homeless charity he supports as a patron, staged an awards ceremony at the British Museum.

His son Chip Carter said before the family gathering that his father had this election very much in mind. “He’s plugged in,” Chip Carter told the Associated Press. “I asked him two months ago if he ...