The Special Investigations Unit is piecing together what happened in a confrontation between Ottawa police officers and a Somali-Canadian man on a Sunday morning in Ottawa's Hintonburg neighbourhood.
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People in the city, and its Muslim community, meanwhile, keep asking how an interaction with police could end up with a man, who is said to have mental health issues, dying.
Here is what we know so far about what happened and when, and how people are responding to the death of 37-year-old Abdirahman Abdi: