Police from the 84th Precinct took two weeks off patrol after Dets. Liu and Ramos were shot to death.
The victim in the Dec. 18 shooting was not the intended target, police said.
A recent fight between two gang-affiliated groups fueled an uptick in shootings, officials said.
Jaquay Bennett was killed and a 17-year-old gang member was injured last week in Crown Heights.
Mayor de Blasio and Bratton announced a 4.6 percent drop in serious crime in 2014.
Shmurda shot near a crowd outside an East Flatbush barbershop over the summer, prosecutors said.
The number of people shot and killed by police officers decreased 50 percent.
Citywide crime has dropped by 4.4 percent, Mayor Bill de Blasio announced.
There have been 13 shootings in the 103rd Precinct this year and officals say gun seizures have helped.
Lee added memorials to Eric Garner, Mike Brown, John Crawford and Ezell Ford outside his studio.
Though the number of NYC shootings is up, NYPD Commissioner Bill Bratton said crime is down overall.
The latest data from police show that illegal gun recoveries have reached a new low.
The suspects were arrested in the deaths of Maodo Kane and another cabdriver, police said.
There will be more than 300 officers reassigned to precincts with the most shootings.
Shootings are up 8 percent this year, but the NYPD got some respite with fewer incidents this week.
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