"I hit him 'cause I was mad," the 27-year-old suspect told authorities during his arrest.
Thieves are pushing in air conditioners to gain entry to people's apartments, police warn.
An NYPD detective saw the robbery in Crown Heights and arrested the 15-year-old.
Crime fell by almost 19 percent between May 25 and June 21, compared to the same time last year.
Thirteen bikes were stolen in the 88th Precinct over the past month.
Ten out of 14 robberies in the 88th Precinct occurred on Myrtle and Atlantic avenues.
The student left the laptop unattended in a changing room next to the school's theater.
The cab driver snatched the passenger's phone after an argument over the price of fare, police said.
A thief slipped the watch off his left wrist, police said.
"Summer All Out" will see 330 officers sent out to patrol 10 precincts with rising crime.
NYPD Commissioner Bill Bratton said Monday that stop-and-frisk has little impact in deterring crime.
And it's not just murders and shootings that are increasing across most of New York City.
The mayor said better training and technology will bring the crime numbers down.
Crime rose 15 percent in the last 28-day period compared to the same time last year.
The scammer handed a woman a package he claimed contained $75,000, and asked her to give it to charity.
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