Paul Solway, 58, leaked gas from a pipe and set fire to a chair at his girlfriend Joanne Waterfall's terraced home in Eden Street, Alvaston, Derby, on the evening of June 10 last year.
Today a Daily Mail investigation reveals that the Alvaston carnage was far from an isolated incident and more and more meetings around the sport are now affected by violence and intimidation.
Chaos erupted at the international sports event in Alvaston, Derby, when two armed rival groups before a 'pre-planned and organised' mass fight broke out.