Police have arrested 26-year-old William Sylk of Malvern and charged him with the robbery of the Rosemont Pharmacy on W. Lancaster Avenue on March 8.
Police say at approximately 9:00 p.m. that night, a man wearing a ski mask entered the pharmacy and jumped over the counter.
The suspect pointed a gun at the employees and stole a quantity of narcotics before leaving the store.
Sylk is also charged with related offenses.
