The Ferryman Will Be There

Description for THE FERRYMAN WILL BE THERE by Rosemary Aubert:

When a famous movie director is murdered in full view of his fans -- and his teenaged daughter disappears directly after -- police detective Matt West realizes he might need some help on the case. There is only one man who knows the dark netherworlds of Toronto well enough to find the girl, and that's Ellis Portal. After living as a homeless man himself, Ellis understands how the desperate survive -- and knows where to find them. But what he discovers may be worse than anything he's ever encountered...

This is #3 in An Ellis Portal Mystery.