In December 2019, 26-year-old Koshin Yusuf was coming home from a night out with friends when he was cornered at his Scarborough apartment entrance and shot 24 times. But why? All police had to start with was a piece of grainy video surveillance that captured the actual murder. Was it a case of mistaken identity? Did Koshin know his attackers? Crime Beat tracks the investigation and learns why the judge would later call it a 'stunning' piece of police work.