Alan Catterall , December 2010 , died while carrying out cleaning at Pyranha Moulding . He was cleaning molten plastic from inside while oven was switched off . The oven was accidentally switched back on by colleague Mark Francis , who was engaged to Mr Catterall 's daughter , and put into warm-up mode . The court heard Mr Catterall suffered severe burns and died of shock .
Alan Catterall , 54 , died while carrying out cleaning at Pyranha Moulding . He was cleaning molten plastic from inside while oven was switched off . The oven was accidentally switched back on by colleague Mark Francis , who was engaged to Mr Catterall 's daughter , and put into warm-up mode . The court heard Mr Catterall suffered severe burns and died of shock .