Hoover died in 2015 but Ramer said he would have been charged with Christine's murder had he been alive, and police were looking for more information on him.
Interim Toronto police chief James Ramer announced on Thursday that on October 9, police identified through DNA analysis the person responsible for semen found in Jessop's underwear.
Christine Jessop went missing after purchasing bubble gum at a convenience store in Queensville, in York Region, 50 km north of Toronto.
Her body was found over three months later. She had been stabbed to death and evidence that she had been sexually assaulted was located at the crime scene.
Her neighbor, Guy Paul Morin, ended up being charged in 1984 before being wrongly convicted and sentenced to life in prison.
Interim police chief Ramer said a DNA sample taken from evidence and sent to Othram, a lab in the United States with cutting-edge technology that is not widely available.
Morin received $1.25 million from the Ontario government and a public apology after he was acquitted of Jessop's murder. His wrongful conviction - based in part on police and Crown tunnel vision and jailhouse informants - was subject of a judicial inquiry.
"I am relieved for Christine's mother, Janet, and her family, and hope this will give them some piece of mind", Morin said in a statement issued through his lawyer Thursday.
Morin also thanked Toronto police for pursuing justice so many years after the murder.
"I'm probably one of the few around that was still here when that murder was being investigated", Ramer said". "When DNA exonerated me in January, 1995, I was sure that one day DNA would reveal the real killer and now it has".
Speaking to CTV News Toronto directly, Lockyer added that today's news "came right out of the blue".
The identification of Hoover as the culprit came with a great sense of relief, Ramer said. "And it's from that lineage that the investigators then work downwards to be able to try to identify potential persons of interest".
"Simply put, (genetic genealogy is) not a DNA match", Code said.
The DNA technique that identified the killer is referred to as genetic genealogy.
From there, authorities were able to match the DNA to Hoover.
Ramer acknowledged on Thursday that identifying Hoover as the killer has "generated many more questions" about the final moments of Jessop's life and that there is still more work to be done on the case. If you have any information, no matter how insignificant it may seem, please contact police.
The investigation, as we know, resulted in the arrest of Guy Paul Morin.
Speaking to CTV News Toronto on Thursday afternoon, Jessop's brother, Ken, said he's in "strong disbelief" that police have finally identified his sister's killer.
"A day was too long, but 36 years was far too long".
He said this news will provide closure for his mother, who started to believe she would "never have an answer".
"It's not that we start with Calvin Hoover", said Staff Supt.
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