Police arrested a friend of the store owner's son and named another suspect Monday.
The incidents occured on Oct. 1 and Oct. 8 about five blocks apart, police said.
Two men pointed a gun at the baby boy and threatened to kidnap him if family resisted, police said.
An employee of BC Wireless, near the Morgan Library, chased after the men, but lost them blocks away.
The muggers pulled out a gun during the rush hour commute and robbed the 22-year-old man, cops say.
A man robbed a Cypress Hills tobacco shop at gunpoint in June, cops said.
Cops are looking for a man who robbed a Little Caesars on Sutphin Boulevard and Linden Boulevard.
A Bushwick dollar store was robbed at gunpoint Tuesday afternoon, officials said.
Cops are searching for two men who stormed a Kingsbridge apartment Tuesday afternoon, police said.
One of the men held seven people at gunpoint as the other stuffed their money and belongings in a bag.
The two men struck on Mace and Oneida avenues in late December, according to the NYPD.
The suspect robbed the Capitol One Bank at 750 Third Ave. on Tuesday, cops say.
Robert Hill, 51, was arrested for robbing four people at gunpoint last month.
Police released surveillance video of a man they say mugged four people.
As cops disrupted drug activity last month, gangs sought other sources of illegal income, police say.
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