The hunt for Filipino militants who kidnapped and beheaded two Canadians

Canadian businessmen John Ridsdel and Robert Hall were both murdered in 2016 after they were kidnapped by Phillippine militant group Abu Sayyaf.

What's happened in the hunt for the men's captors? A Global News investigation has found that a manhunt launched in response to the murders has left Abu Sayyaf's leadership, and the key figures involved in the kidnapping, in custody or dead.

The Philippine military and police operation has taken down those who abducted the Canadians, the guards who mistreated them, the ransom negotiators who taunted their families, the voice heard in the videos, the leader who ordered their killings.

Global News investigative reporter Stewart Bell travelled to the Philippines to learn more.