Man tries to rob officers using knife, tear gas Sandy Stancil picked the wrong people to try to hold up.

According to authorities, the 51-year-old Hyattsville resident approached two people at the Sunoco gas station at 4836 Kenilworth Avenue in Edmonston around 11 p.m. Tuesday. Stancil pulled out a knife and a can of tear gas and demanded money, Edmonston police said.