It happened at 2:45 a.m. on Thursday at the 7-Eleven store in the 2900 block of Cottman Avenue.
In surveillance video released by police, the victim can be seen getting out of his minivan and walking to the store. A few moments later, a car pulls up and an unknown male gets out, opens the victim's door, and searches the compartments.
The victim then returns to his minivan and that's when the suspect approached him with a knife. The suspect puts a knife to the victim's throat and begins making demands.
The victim can then be seen throwing something on the ground, described by police as personal property. The suspect reaches down, picks up that property, gets in the car and takes off.
That car is described as a small to medium red or burgundy car with Pa. license plate HSS-7257. The car was driven south on Brous Street.
The man with the knife is described as a white male, about 25 years old standing 5'10" tall weighing 160 pounds. He was wearing a gray t-shirt with the words "Moores Inlet" on the front. He was also wearing gray sneakers, jeans and a black baseball cap.
Another man with the knife-wielding robber is also described as a white male, about 25 years old, 5'10" tall weighing 160 pounds. That man had dark brown hair with a slight beard, wearing a blue t-shirt, blue jeans with a white belt and blue sneakers.
Anyone with information is asked to contact Philadelphia Police at 215.686.TIPS (8477) or through the police website at phillypolice.com.