MONTREAL -- The 15th suspect in an alleged juvenile-pornography ring surrendered to police in Montreal on Wednesday.

The charge sheet against Jessy Giroux, 32, indicates he has a Toronto address.

Giroux studied philosophy at the University of Toronto and published an article entitled: "Are Psychopaths Happy? A Challenge for Morality."

A bail hearing for seven of his co-accused resumed in Montreal on Wednesday and is set to continue Thursday.

Of the seven other men, two waived their right to a bail hearing and five were freed last week under various conditions.

The 15 are aged between 27 and 74 and face various charges, including possession and distribution of child pornography between 2003 and last month.

Authorities allege the accused used online discussion forums to exchange information about their sexual experiences with children and to talk about what tactics to use and where to go to sexually abuse them.

They were arrested following a three-year investigation by Quebec provincial police and the RCMP.