From the looks of it, the truck was actually trying to cross king st from one side street to another. Could be wrong, but where the truck stopped, It's pretty hard to imagine anything else. The exit from the street he was leaving is visually obscured by a building, for both parties involved. Having said that though he struck the rider 4 lanes (the width of king street) away from the area he was exiting. Clearly a "didn't see you moment". Just hope the rider comes out ready to ride again.