A father and son opened fire on a Jewish festival at Sydney’s Bondi Beach in a shooting spree that killed 15 people including a child, authorities said Monday as they denounced the attack as antisemitic “terrorism.”The duo fired into crowds packing the beach for the start of Hanukkah on Sunday evening, sending people fleeing in panic across the tourist hotspot.For all the latest headlines follow our Google News channel online or via the app.A 10-year-old girl was among the 15 dead in Australia’s worst mass shooting for almost 30 years, while 42 more were rushed to hospital with gunshot wounds and other injuries.Police are still unravelling what drove the shootings, although authorities have said the plot was clearly designed to sow terror among the nation’s Jews. “What we saw yesterday was an act of pure evil, an act of antisemitism, an act of terrorism on our shores,” Prime Minister Anthony Albanese said on Monday, before laying flowers at the Bondi Pavillion. The gunmen targeted an