A 12-year-old boy, Nico Antic, died from injuries after a suspected bull shark attacked him in Sydney Harbour on January 18. Nico was jumping off a rock ledge with friends when the attack happened. He suffered serious leg injuries and was rushed to Sydney Children's Hospital in critical condition. After surgery, he was put into an induced coma but later passed away. His parents, Lorena and Juan, said, "We are heartbroken to share that our son, Nico has passed away." They added, "Nico was a happy, friendly, and sporty young boy with the most kind and generous spirit. He was always full of life and that's how we'll remember him." Friends were praised for their bravery in helping Nico immediately after the attack. Meanwhile, an online fundraiser for Nico's family has collected $240,000 (£121,308). This attack was one of four shark incidents reported along the New South Wales coast over two days. On Monday, a surfer on Sydney's northern beaches escaped a shark unharmed. Hours later, a 27-year-old man suffered "life-changing" injuries in another shark attack nearby. The next day, a 39-year-old man was bitten but survived with chest wounds and was hospitalized. Experts say heavy rain before these attacks created ideal conditions for bull sharks, which like murky water. The rain also flushed nutrients into the waters, attracting sharks closer to shore. For safety, many Sydney beaches were closed but have since reopened for the Australia Day holiday weekend.