During the 1981 Trooping the Colour ceremony, six weeks before the wedding of Prince Charles and Lady Diana Spencer, six shots were fired at Elizabeth from close range as she rode down The Mall, London, on her horse, Burmese. Police later discovered the shots were blanks. The 17-year-old assailant, Marcus Sarjeant, was sentenced to five years in prison and released after three. Elizabeth's composure and skill in controlling her mount were widely praised. That October Elizabeth was the subject of another attack while on a visit to Dunedin, New Zealand. Christopher John Lewis, who was 17 years old, fired a shot with a .22 rifle from the fifth floor of a building overlooking the parade, but missed. Lewis was arrested, but never charged with attempted murder or treason, and sentenced to three years in jail for unlawful possession and discharge of a firearm.