A woman who shielded her son and a group of children she did not know from the Bondi Beach gunmen has told Sky News of the horror she witnessed during the attack. Olga lost her second child during the panic of Sunday's attack - he was helped by another stranger. At least 15 people were shot dead during the attack, which was carried out by a father and his son in an apparent ISIS-inspired atrocity. Live updates: https://news.sky.com/story/bondi-beach-latest-two-in-custody-after-reports-of-