After a manhunt that spanned four days, the main suspect in the mass stabbing that injured at least 18 and left 10 people dead in northern Saskatchewan was arrested last Wednesday. Shortly after, he died in police custody after going into what RCMP call "medical distress."

His death means we may never know the motive of the attack. But questions remain about why, despite being a wanted man, he remained at large for months before — and days after — the stabbings.

Today on Front Burner, CBC Saskatoon reporter Dan Zakreski walks us through all the updates on the attacks, the chase and the investigation.