By Adam Dutton & Charlie Duffield A waste yard manager has been found guilty of manslaughter after a labourer was killed after falling into an industrial shredder while at work. Davis Wallis, 29, accidentally toppled into a shredder designed for commercial waste and wood at Timmins Waste Services (TWS), in Wolverhampton. The CCTV footage from the tragic event on September 15, 2018 – which the Mirror has chosen not to include – shows how Mr Willis was lifted up to the machine on a JCB digger’s grapple arm. His boss, the yard manager Brian Timmins, was in the cab of the digger. Mr Willis had bee…