The man would allegedly pick people up in a livery cab and then flash a badge.
The muggings happened in Midtown and Hell's Kitchen earlier this month, cops say.
A group of men pushed their way into the apartment on Eastern Parkway last Friday.
Mayor Bloomberg said stronger gun laws and aggressive policing were needed after Antiq Hennis' death.
Omar Gray was arrested for transporting $2,100 in counterfeit bills, the PAPD said.
A thief threatened to shoot his victims if they didn't hand over their phones, cops said.
Two men stole money and cigarettes from a Hollis bodega, police said.
Perice Brown, 27, was shot to death about 1:25 a.m. Friday, cops said. Another man was also wounded.
Eddie Colon, 43, was arrested in Brownsville Wednesday morning, police said.
MTA employee Satchel Corso, 25, was arrested with a gun and cocaine Tuesday night, police said.
Lawyers for Richard Haste said he was told by fellow officers that the teen had a gun.
Andre Calix began the robbery spree in June, according to the NYPD.
Anna Graham told two armed robbers they didn't have the "balls" to shoot her, but said others shouldn't.
Anna Graham was threatened by gun-wielding thieves outside her Grand Street apartment, police said.
A man and a woman have been taken to King's County Hospital Center, the Fire Department said.
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