A new biography revealed a royal murder that happened at the hands of Boris Johnson’s dog. At the time of the 2020 lockdown, the former Prime Minister used the gardens of Buckingham Palace for walks, and his Jack Russell attacked Queen Elizabeth’s swan while enjoying a daily stroll. “During one such walk, to Johnson’s horror, Carrie’s Jack Russell, named Dilyn, attacked and killed a gosling near the palace pond,” Robert Hardman revealed in The Making of a King: King Charles III and the Modern Monarchy. Although the pet fatally harmed Elizabeth’s bird, Johnson “decided that it would be best to …