Australian police say homemade ‍pipe and tennis ball bombs were thrown at a crowd at Bondi Beach before a mass shooting but failed to detonate, according to court documents released on Monday.Fifteen people were killed and dozens injured in the mass shooting at a Jewish Hanukkah ‍celebration at Bondi on December 14. The attack has shocked the nation and sparked calls for tougher gun laws and heightened efforts to stop antisemitism.For all the latest headlines, follow our Google News channel online or via the app.One of the alleged gunmen, Sajid Akram, 50, who was shot dead by police, owned six firearms. His 24-year-old son Naveed Akram has been charged with 59 offences, including murder and terrorism, according to police.The alleged gunmen had planned the attack for several months and visited the Bondi beachside park for reconnaissance two days prior, said a police fact sheet released by the court.Pictures included in the police report showed the father and son allegedly training with