Random Riddle: 11-26-2014

I once had a friend by the name of Bob.
As a policeman, danger was his job.
Then one day Bob drove to a local shop.
All the people there knew Bob was a cop.
It was thought unsafe, scene of many crimes.
And on that June day, Bob was shot three times.
After the shooting, Bob received no aid.
So how is it then no arrests were made?
 
Riddle