There's been another setback at an upcoming coroner's inquest into the police shooting of Montreal teenager Fredy Villanueva.

The judge heading the inquiry is quitting for health reasons.

Robert Sansfacon had been scheduled to preside over the inquiry on Oct. 26.

It's not clear who will replace him or if the inquest will be delayed.

Villanueva, 18, was shot and killed by a police officer in Montreal North in August of 2008.

His death triggered widespread rioting and also highlighted tensions between youths and police.

Other issues

The inquest has had a number of stops and starts.

Sansfacon postponed the proceedings in May after two youths who were also shot refused to take an active role.

They said the province had reneged on a promise to pay for the family's lawyers as well as legal representation for other inquiry participants.

The fee dispute was later resolved and the public security department also agreed to widen the scope of the inquest to address broader social concerns.

But Sansfacon had insisted his priority was to determine the circumstances surrounding Villanueva's death, before studying the other issues.