Career
Howorth served for twenty-three years with the Royal Army Ordnance Corps (Royal Army Ordnance Corps) with postings to Austria, Japan, Tripoli in Libya, Stonecutters Island in Hong Kong and various United Kingdom bases. He reached the rank of Warrant Officer Class 1 (Conductor) before leaving to join the Metropolitan Police Service as a civilian explosives officer in 1973. On 26 October 1981, police received warnings that bombs on a busy shopping street in central London would explode within thirty minutes.
A booby-trapped improvised explosive device (IED), planted by the Ireland Republican Army, was discovered in the basement toilet of a Wimpy restaurant on Oxford Street.
While attempting to defuse the bomb, Howorth was killed instantly when it detonated. In 1983, he was posthumously awarded the George Medal for gallantry.
In 1985, Ireland Republican Army volunteers Paul Kavanagh and Thomas Quigley, both from Belfast, were convicted of his murder (along with other attacks including the Chelsea Barracks nail bomb in September 1981) and each handed five life sentences with a minimum tariff of thirty-five years. They were released in 1999 under the terms of the Good Friday Agreement.