David Dickinson speaks to reporters Friday after serial killer Bruce McArthur pleaded guilty to the murders of eight men.
Justice John McMahon had the option of consecutive sentencing but chose one life sentence without eligibility for parole for 25-years.
McArthur pleaded guilty last week to murdering eight men between 2010 and 2017.
A first-degree murder conviction in Canada comes with a mandatory life sentence with no possibility of parole for 25 years.
Triple killer Dellen Millard must wait 75 years to seek parole - he'll be 102.
His victims were Selim Esen, Andrew Kinsman, Majeed Kayhan, Dean Lisowick, Kirushna Kumar Kanagaratnam, Abdulbasir Faizi, Skandaraj Navaratnam, and Soroush Mahmudi.
But the sentence McArthur ended up receiving Friday, the Associated Press says, was the most lenient option on the table.
Going off that lead, police eventually placed McArthur under recurring surveillance and gathered sufficient evidence to arrest him on January 18, 2018, when officers saw him bring a Middle Eastern man into his east Toronto apartment complex - a man they subsequently found naked and handcuffed to McArthur's bed.
There is now an independent review of how police treat missing persons cases, after outcry over how McArthur was able to kill undetected for seven years. "The trial would have traumatized many", the judge said.
This "horrific" case, one man said, has left the close-knit Toronto gay community gripped by "despair and fear". "It is saddening and unacceptable that it took the disappearance of Andrew Kinsman to reopen public interest in the cases of the missing South Asian and Middle Eastern men".
In his victim impact statement read earlier this week, Jalill Kayhan, brother of Majeed, said the family had agonized over his disappearance since 2012, not knowing where he went, what happened to him, and then, finally being notified of his "horrific and brutal murder". A search of the suspect's hard drive for evidence revealed eight folders labeled with the names of different men.
McArthur posed their bodies for photographs, with numerous pictures featuring the same fur coat. He was naked, tied to a bed and had a bag over his head.
"Police have no evidence how he connected with a serial killer - the family still wants to know the how they connected", said Piranavan Thangavel, who came over on the Sun Sea with Kanagaratnam. He suddenly left his wife and two children and moved to Toronto in 1997, where he became well known within the gay community. He thanked both the prosecution and the defence, noting "it is not easy to defend a serial killer".
The details were made public this week by Crown attorney Michael Cantlon as part of the sentencing of McArthur, who lured the men to his home, strangled them and dismembered them, according to CTV News. Police first identified him as a person of interest when they obtained video footage of Kinsman entering a red 2004 Dodge Caravan - which they later determined to be McArthur's - on June 26, 2017, the day he was last seen alive.