Tim Horton's case

Prosecutors say witness statements and the viral video of the fight leading up to the death of 75-year-old Anita Ann Grayson showed the employee involved in the fight acted in self defense. Grayson's death was attributed to an existing heart condition.

Seventy-five-year-old Anita Ann Grayson died from acute exacerbation of congestive heart failure after a physical altercation inside the store.

Because of of the emotions surrounding such cases, the investigation of cases involving death or serious injury can take longer than people think it should.