Toronto police services
"The best-case scenario is those remains that we've recovered are matched up to remains we've already recovered."
Police say the arrests have significantly disrupted the Five Points Generalz gang.
Further investigation revealed three other people were also hurt.
The driver of the van is in police custody.
Det. Sgt. Hank Idsinga said releasing the photo was a "last resort" to identify the man.
"We will want to discover how it was that she made it this far, how this all happened."
It was not immediately clear whether he was a building employee or a resident.
The men are charged with fraud, conspiracy, forgery and money laundering.
She is one of more than 60 men and women to file complaints with Halifax Regional Police.
Bruce McArthur has now also been charged in the deaths of three more men.