Speaking of armed robberies in Providence, this happened not too long ago:
Providence Police Investigating Armed Robbery at Convenience Store
Arm Market at 29 Academy Ave. That on the edge of the Valley and Mount Pleasant neighborhoods. And close to Olneyville.
Street View:
https://goo.gl/maps/48keQ7ytPGETcMTt7
"The store clerk told police a male had entered the store, approached the counter and brandished a knife, demanding money.
According to the clerk, the suspect proceeded to come behind the counter, taking cash from the register as well as cigarettes.
The clerk told police the suspect then fled on foot."