Hundreds of pages of newly released police documents show that Toronto police had been actively investigating accused serial killer Bruce McArthur for at least five months prior to his arrest on Jan. 18.

The documents also show that investigators obtained a general warrant for McArthur鈥檚 apartment on Dec. 4 -- four days before Toronto Police Chief Mark Saunders told reporters that 鈥渢he evidence to date tells us that there is not a serial killer.鈥

McArthur is the 66-year-old landscaper who is currently facing eight first-degree murder charges in the deaths of eight men who went missing between 2010 and 2017. Most of the victims had ties to the city鈥檚 gay village.

Candace Shaw, a neighbor of alleged victim Andrew Kinsmen, says she is upset that police appeared to be 鈥減oo-pooing the notion that there was a serial killer at work鈥 even after they had obtained a warrant to search his apartment.

Police Chief Mark Saunders, meanwhile, says he stands behind his words.

鈥淚 did not mislead anybody with what I said,鈥 Saunders said Tuesday.

鈥淔ollow exactly what I said,鈥 he added. 鈥淒on鈥檛 interpret what I said and you鈥檒l understand that what I said was accurate, was truthful and in no way was meant to mislead the public in any way, shape or form.鈥

The partially redacted documents were released Monday to several media outlets, including CTV Toronto. They show that Toronto police applied for what鈥檚 known as 鈥減roduction orders鈥 as early as August, 2017, as part of their investigation.

Such orders are signed by judges and compel organizations such as banks and phone companies to hand over documents to investigators.

The documents show that in August and September, 2017, police were granted production orders for Google, Rogers, Bell, Telus, Royal Bank, and Manulife Bank.

In October, further production orders were approved for Transunion Bank, the Bank of Nova Scotia, TD Bank, and Pink Triangle Press 鈥 a publisher that specializes in LGBT material.

Then, in November, police obtained a tracking warrant for an unknown subject. Former Toronto police homicide detective Mark Mendelson told CTV Toronto that such warrants allow police to physically track a suspect without risking the prospect of being discovered.

鈥淥nce the suspect realizes they are being followed, they change their habits completely,鈥 he said.

鈥淭hese types of tracking warrants allow the police to allow GPS devices on vehicles -- whether it鈥檚 a car or a bicycle or a motorcycle -- in order to track those movements lawfully.鈥

On Dec. 4, 2017, investigators obtained the general warrant for McArthur鈥檚 apartment. According to Mendelson, that kind of warrant gives police the right to search for such things as fingerprints, hair samples, bodily fluids, computer data, pictures and video.

The documents obtained by CTV Toronto were unsealed by a judge after a media consortium that included CTV appealed for access. Large portions of the documents, which are called ITOs, or 鈥渋nformation to obtain鈥 documents, remain sealed. Those redacted portions include what evidence led to the warrant authorizations and what investigators were searching for.

Police wrapped up their investigation at McArthur鈥檚 apartment in early May, and say they have collected more than 1,800 exhibits of evidence and taken 18,000 photos.

The remains of at least seven of the men that McArthur is accused of murdering were located in planters on a Leaside property where he worked as a landscaper.

Last week, police completed a canine search of more than 100 other properties connected to the case.

McArthur鈥檚 next scheduled court appearance is on June 22.

None of the allegations against him have been proven in court.

With a report from CTV Toronto鈥檚 Scott Lightfoot