Boy, 12, fighting for life after large shark severely mauled both his legs as he played with friends on popular beach

A 12-YEAR-OLD boy is fighting for his life after a shark brutally mauled both his legs at a popular beach in Australia. Five of the victim’s terrified pals watched in horror as the attack unfolded – before desperately trying to help him until emergency services arrived. The horrifying attack happened at about 4.30pm at Nielsen…