Police said Pawel Borowski-Beszta, 25, placed the package in to the mailbox in the 3600-block of West Fullerton Avenue. Police were called to the area at around 10:35 a.m. and the suspicious package prompted a hazardous materials response including using a robot.
Police said the package contained narcotics and Borowski-Beszta was taken into custody at 1:11 p.m. Wednesday.
Borowski-Beszta is charged with one felony count of a controlled substance trafficking and one felony count of possession of a controlled substance. He is scheduled to appear in bond court Thursday