Today we learned that the name of McArthur's alleged victim is Kirushna Kumar Kanagaratnam, he is alleged to have been killed by McArthur sometime between September 3 and December 14 of 2015.
The alleged victim has been identified as Kirushna Kumar Kanagaratnam.
Idsinga said more remains might be found in the planters at the home McArthur used as storage and that 75 properties linked to the landscaper are under investigation.
The detective did not reveal Kanagaratnam's immigration status and said he had never been reported missing in Canada.
An external review to be launched later this month will look into the way in which Toronto police investigated the missing men reports.
Investigators said he was identified after they took the rare step of releasing photographs of his corpse and appealed to the public for help. He would have been 37 years old at the time of his death, Idsinga said.
Canadian alleged serial killer Bruce McArthur is now facing an eighth murder charge - the death of a Sri Lankan man who had not been reported missing.
Police identified the man Monday as Kirushna Kumar Kanagaratnam, who had moved from Sri Lanka to Canada in 2010. He declined to say how the worldwide agency contributed to the investigation or how Toronto police came by the photo in the first place.
Police have said they plan to search at least 70 more properties where they believe McArthur, a self-employed landscaper, worked.
The charges relate to the deaths of Selim Esen, 44, Abdulbasir Faizi, 44, Majeed Kayhan, 58, Andrew Kinsman, 49, Dean Lisowick, 47, Soroush Mahmudi, 50, and Skandaraj Navaratnam, 40.
"We have a lot of searches still to do", he said.
The sprawling investigation into McArthur is probing cold cases that go as far back as 1975.
"I think we've all seen in the media so-called experts who tell us that serial killers don't start in their late 50s and their 60s", Idsinga said.
Kayhan's remains have not yet been found. He said the victims in those cases matched the general profile of the first seven men McArthur is accused of killing. Police have not said whether Mahmudi had any sort of relationship with McArthur.
Kanagaratnam's remains were recovered from garden planters at a home in central Toronto where McArthur kept his landscaping equipment.
It's unclear how McArthur may have met Kanagaratnam, who has no known link to Toronto's Gay Village. McArthur came to the police's attention in the fall of 2017 as part of that probe.