Newly unsealed documents reveal a secret police investigation inside Bruce McArthur鈥檚 apartment more than a month before his arrest, while also raising questions about how much information Toronto Police Chief Mark Saunders knew when he publicly dismissed fears that a possible serial killer was targeting the city鈥檚 gay village.

The heavily redacted documents, unsealed Wednesday by a judge鈥檚 order, show that, by Nov. 27, police were already treating McArthur as a suspect in the murder of Andrew Kinsman and considered him a 鈥減erson of interest鈥 in the disappearance of four other missing men.

Whatever information investigators knew in November wasn鈥檛 made public on Dec. 8, when police held a news conference denying that the series of disappearances in the Church-Wellesley Village were related.

Saunders dismissed mounting concerns among Toronto鈥檚 LGBTQ community that a serial killer was preying on gay men, saying 鈥渨e follow the evidence and the evidence is telling us that is not the case right now.鈥

By the time Saunders made that statement, police had already secretly searched McArthur鈥檚 home.

Three days before the press conference, investigators applied for a judge鈥檚 authorization to 鈥渃overtly enter鈥 McArthur鈥檚 apartment. Investigators entered McArthur鈥檚 apartment on Dec. 6 and Dec. 7 and secretly collected information off a USB drive, an external hard drive and a desktop computer.

The authorization permitted police investigators to enter the apartment for the purpose of 鈥渇acilitating the covert copying of data from digital device(s)鈥 and 鈥渢o facilitate the covert searching, photographing, videotaping and/or marking, testing, seizure or returning of any documents, or physical objects or things (non-digital) relevant to the offence.鈥

By that point, McArthur was being surveilled by police on 鈥渁lmost a daily basis,鈥 according to the documents. Weeks before, on Nov. 17, cadaver dogs searched an area behind a home where McArthur worked as a landscaper, but found nothing.

Toronto Police spokeswoman Meaghan Gray said the police force stands behind Saunders鈥 December remarks.

鈥淭he documents indicate the investigators鈥 theories but there was no evidence to support those theories,鈥 the statement reads.

Dismembered remains of all eight missing men, who vanished between 2010 and 2017, were later found buried in planters at the home.

Saunders didn鈥檛 allude to the covert investigation on Dec. 8. Asked by reporters if people in the gay village were in danger, Saunders said: 鈥淭he short answer to that is, I don鈥檛 think so.鈥

One month later, McArthur, 66, was arrested and charged with two counts of first-degree murder in the deaths of Kinsman and Selim Esen. Today, he faces eight counts of first-degree murder in connection with the deaths of eight men, including Skandaraj Navaratnam, Majeed Kayhan, Dean Lisowick, Soroush Mahmudi, Abdulbasir Faizi and Kirushna Kanagaratnam.

The charges have not been tested in court. McArthur is expected to appear court on Friday.

What police knew

The unsealed documents are made up of information to obtain (ITO) applications, which investigators file to seek warrants.

Several media organizations, including 麻豆影视, petitioned the court to release the documents, which help illustrate what information police knew and when they knew it. The documents also shed light on the days before McArthur鈥檚 arrest and the intense search that followed.

McArthur was on police radar by Aug. 31, when his name appears in the documents in relation to police activity. The page is heavily redacted, making it unclear why police mentioned McArthur.

The timing means that McArthur鈥檚 name came up two weeks after police launched Project Prism, on Aug. 14, to investigate the disappearances of Kinsman and Esen. Project Prism also considered three other missing men previously investigated through Project Houston. (Houston began in 2012 and ended in 2014 with no arrests).

Project Prism began on a Monday. By Thursday, Aug. 17, investigators determined that 鈥渋t is reasonable to believe the worst鈥 about what happened to the five missing men.

By Sept. 5, police investigators considered McArthur a person of interest in Kinsman鈥檚 death. Police also noted striking physical and behavioral similarities between Kinsman and four other missing men.

Det. Const. Joel Manherz wrote in the documents that all of the men were middle-aged, shared physical appearances and spent a 鈥済ood deal of time鈥 at the same gay bar in the village 鈥 the Black Eagle. They all went missing 鈥渦nder mysterious circumstances,鈥 he wrote.

Sometime between Sept. 5 and Nov. 8, McArthur went from a person of interest to a suspect, the documents show. On Nov. 27, Manherz filed an ITO that identified McArthur as a suspect in Kinsman鈥檚 death and a 鈥減erson of interest鈥 in the disappearances of four other men.

The documents also offer new details as to when police believe the men may have died. Police said Esen died on or around April 16, 2017, Kinsman died on or around June 26, 2017, Mahmudi died on or around August 15, 2015, Kayhan died on or around Oct. 18, 2012 and Dean Lisowick is said to have died between April 4, 2016 and March 15, 2017.

McArthur was arrested on Jan. 18. Following his arrest, homeowners across the Toronto region reached out to police.

The massive search for evidence stretched across about 100 homes, according to the documents.

With files from CTV鈥檚 John Vennavally-Rao and CTV Toronto