Bruce McArthur has been charged with five counts of first-degree murder. Photo via Facebook

Toronto police found a young man tied to alleged serial killer Bruce McArthur’s bed when they arrested him, according to media reports.

Citing police sources, the Toronto Sun reported that cops had been surveilling McArthur, 66, when they saw a young man enter his Thorncliffe Park building. At that point, they decided they had to act, and kicked in his door. Once inside, they found a young man tied up on McArthur’s bed and set him free. He was not hurt.

Toronto police did not immediately respond to VICE’s request for comment.

McArthur is accused of murdering five men, who went missing from Toronto’s gay village. The victims are: Selim Esen, 44, Andrew Kinsman, 49, Majeed Kayah, 58, Soroush Mahmudi, 50, and Dean Lisowick, 47. Police believe there are more victims and said Monday that they discovered remains belonging to three individuals in planters at job sites McArthur worked on as a landscaper. The disappearances amongst the five victims named so far stretch back as far as 2012.

According to Global News, when police arrested McArthur, they found photographs of his victims on his computer.

Homicide Det. Sgt. Hank Idsinga told reporters police have “no idea” what the final victim tally will be.

“The City of Toronto has never seen anything like this.”

Investigators are asking anyone who has hired McArthur as a landscaper to get in touch so police can search their property.