He said Magee went to a nearby Walmart shortly before he died. That is where he is believed to have bought the rope found around his neck.
If this young man bought the rope himself, if there is evidence of this like surveillance video, that paints this situation in a pretty different light.
Edit: I want to be very clear that the police should be presenting any evidence they have of this. I would not take the police at their word. My comment here hinges on the report being true.