Police were called to a robbery in progress at the store located on the 4000 block of Edgemont Avenue around 4:30 a.m.
Police say the suspects jumped over the counter, forcing an employee to open the safe where the narcotics were stored. After taking the drugs, the suspects jumped back over the counter and attempted to flee.
That's when police arrived and ordered them to get on the ground.
In an attempt to flee, police say one of the suspects, 24-year-old Jonathan E. Jones, grabbed an employee, and turned towards one of the officers. Believing the witness was in imminent danger, the officer shot Jones in the arm.
The four suspects, who police say are from the D.C. and Virginia area, fled the scene.
Anthony Mack of Aston was so stunned to hear of the robbery, he came to see for himself.
"I was pretty surprised in an area like this," said Mack.
Investigation underway at Brookhaven Walgreens
Police later arrested 25-year-old Lorenzo Ross, 35-year-old Derrick Ross, 19-year-old Derek L. Stevens and Jones. All four men were charged with robbery and criminal conspiracy to commit the same.
"As a result of surveillance video, brave witnesses, and excellent police-work, law enforcement was able to swiftly apprehend these dangerous defendants, who will now face the consequences of their actions for boldly and brazenly robbing the pharmacy, placing employees and customers in fear for their lives," said District Attorney Katayoun M. Copeland.
There were people inside the store at the time of the incident but no injuries were reported.