This is a really powerful little story. However, I think it might work better as a feature length script. The plot points and twists seemed to come too quickly. But the dialog is great, and the writing is professional.
One tiny nit-pick: In the first mugging, Dean's phone is stolen. Then, the next morning, he receives a call -- on his phone -- from Josh. Maybe this is his land line? It was a little confusing in any case.