I wouldn't do either. :)
With so few facts released by authorities, your opinion about this case is as good as anyone else's.
There are only a small number of possible reasons for why Wheeler seemed so disoriented.
Head injury of some kind (no injury is obvious on surveillance videos).Medical reason such as a stroke.
Wheeler stopped taking medication, which is alleged in the Newsweek article.
Wheeler was drunk or under the influence of one or more drugs.
I posted the timeline of his known movements in the days prior to his death, and also some information about the route of the trash truck that picked up his body. The police must have more information by this point, but aren't releasing it. According to the Delaware Online article, that's unusual for authorities in that state.
The trash truck only picked up from commercial locations that morning, most of which either were locked, or had video surveillance, or both. Others were in plain sight of apartments and other commercial establishments, and of busy roads.
I believe he was beaten and robbed of his wallet and briefcase resulting in his confusion - may have a resulting head injury or even been drugged.
Also, if you look closely at his jacket you can see the left sleeve is dirty as are his pants like he was thrown to the ground.
The fact that he was robbed on one day and killed the next is more than coincidence.