One of those robberies was captured on surveillance video. Now, police are hoping images help them track down the people responsible.
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The surveillance video reveals the scene of the robbery that took place on the 4900 block of Rubicam Street a few days ago.
In the video, you can see the delivery driver walk to a home, and then three men approach him, at least one of whom is armed with a gun.
It's a method of operation Jesus Suarez recognizes.
Investigators believe the same people robbed him as Suarez was making a delivery for City Star Pizza in Philadelphia's Mount Airy neighborhood about a month ago.
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"So, the one guy says, 'Give me your wallet.' Just as I pulled out my wallet, he pulled out his gun. They took the food, my money, and my phone. Thank God, they didn't take my car," said Suarez in Spanish.
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So far, there have been six such robberies in Logan, Germantown, and West Oak Lane dating back to February 9.
In each case, someone calls a local eatery and places a late-night delivery order, usually giving the address of a home that is vacant.
When the delivery driver arrives, two or three men pop out from bushes or an alley nearby, brandish a firearm and make away with phones, the food that was ordered, and approximately $2,000 in cash combined.
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In fact, Suarez says $500 of that total came just from him.
But Suarez says the most important thing is that he wasn't injured.
"Well," he says, "It could've been worse. I could've used that money, but they didn't hurt me. The material stuff can all be replaced. So, I will be OK."
None of the victims was injured.
Anyone with information about this investigation is asked to contact Northwest Detectives.