This is the moment a brave petrol station worker used a stool to chase off a gun-wielding thug who tried to rob him. Tyrone Roach, 29, faces a lengthy prison sentence after being convicted of attempted armed robbery at Newcastle Crown Court. CCTV footage shows the moment a masked Roach bursts through into Gulf petrol station shop in Chapel House, Newcastle, last July and storms towards the counter. Armed robber Tyrone Roach, 29, faces a lengthy prison sentence after he was convicted of attempted robbery at Newcastle Crown Court He proceeds to pull a gun from his pocket and aims it through the safety glass at a male member of staff.