When Nate first encounters the body in the alley and takes the corpse's pulse, the dead man's fingers twitch.
Nate Bledsoe is possessed by Dane's spirit when he puts on his shoes. The spell is broken when Bledsoe removes his shoes in the apartment and reestablished when he puts them back on. However, Bledsoe later changes into clean clothes, including socks, which he wasn't wearing before, and the dead man's hold on him wasn't broken again.