Sydney father Joshua Smith remembered as friends demand justice over alleged fatal stabbing near Westfield Mt Druitt

Key points

• Police allege a 13-year-old boy fatally stabbed 36-year-old Joshua James Smith near Westfield Mt Druitt on Friday night. Smith had stopped to speak with a group of young people he knew when another group took offence, police said.
• The 13-year-old was charged with murder, and a 16-year-old boy was charged with accessory after the fact to murder. Friends and family have paid tribute to Smith, a father of three, and his children are being supported through a GoFundMe campaign.
• Police say more arrests are expected.