Blackadar said the abuser was identified in Pennsylvania within hours and the child was rescued.
A Saskatoon man was subsequently convicted of multiple child porn-related charges and an application has been made to designate him as a unsafe offender, police said. "It's important for people to understand that this is happening to children all over the world - that they are not only being sexually abused, there are also permanent recordings of this abuse being distributed by people around the globe for their sick perversion".
The victim was a young male, but police did not release his age other than to say he is over 12 but under 16 and was a "family acquaintance" of Bowen.
Toronto police say an global child sex abuse investigation has resulted in 153 arrests, including 16 arrests in Canada and seven in Toronto. More than 20 other offenders were arrested, mainly in the US and the United Kingdom.
Canadian jurisdictions involved in the case include Ottawa, Belleville, Ont., Thunder Bay, Ont., Edmonton, Saskatoon, Quebec, New Brunswick and Newfoundland.
Toronto Police Det. Const. Janelle Blackadar said at least one of the alleged victims in that case was a mere infant at the time.
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Detective Constable Steve Smith, from GMP's Public Protection Division, said: "This woman suffered relentless abuse at the hands of King who was a child himself when these offences first began. We believe he betrayed that trust in the worst kind of way".
Ellis said British police also prevented a child from being adopted by an offender and removed another from foster care.
Then in July 2015, she said, undercover officers in Toronto "observed the live abuse of a six-year-old child over the Internet".
Other people prosecuted in connection with that incident included a charity worker and primary school teacher, Ellis added.
Arrests were also made throughout the U.S.as well as the United Kingdom, Germany, Italy, France, Ireland, Denmark, Belgium and Slovenia.
Several other investigations uncovered similar live-streaming events, one in March 2016 when Toronto police discovered a man in Saskatoon, who had drugged an eight-year-old boy and invited others online to virtually take part in the child's abuse.