Brooklyn

An ex-con was gunned down in Bedford-Stuyvesant, police said.

John Gilliam, 23, was found in the lobby of 85 Tompkins Ave. in the Tompkins Houses projects. He died at Woodhull Hospital.

Gilliam served time in jail on drug-dealing charges and his arrest record, dating back to 2001, includes busts for robbery, assault and weapons possession, sources said.

Bronx

Gunfire claimed the life of a man in Williamsbridge, police said.

Angasha Sharras, 29, was shot in the head on East 227th Street near Barnes Avenue at 10:45 p.m. Friday.

Sharras, who sources say had 14 arrests and a pending pot-possession case, was pronounced dead at the scene.

Another man, aged 31, was shot in the hand.

Manhattan

The body of an unidentified man was found floating in the Hudson yesterday.

The body of the bearded man, age 20 to 30, was discovered at 12:10 p.m. off West 43rd Street.

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Two Health Department employees allegedly swiped a computer from the agency’s Kips Bay offices, authorities said.

On Nov. 26, José Varela, 44, and José Pena, 78, both of The Bronx, boosted a computer from a fourth-floor room in the agency building on First Avenue near 26th Street, sources said.

Varela, a custodial assistant, and Pena, a maintenance worker, allegedly stashed the computer in the basement before Pena moved it to his home.

Pena was busted Thursday and Varela Friday.

Each is charged with criminal possession of stolen property, petit larceny and official misconduct. The computer was recovered and no files were accessed, authorities said.

Queens

A pair of knife-wielding punks robbed a food deliveryman in Ridgewood, authorities said.

Raul Garcia, 18, and Joshua Aponte, 16, approached the victim on his motorized scooter on Cypress Avenue near Bleecker Street at 10:15 p.m. on Jan. 7, according to court papers.

The duo hit the victim in the face with the butt end of a knife and swiped $300, sources said.

A cop nabbed Aponte nearby and recovered a knife and $438 from the suspect’s pockets, sources added. Garcia’s clothes and driver’s permit were found ditched beneath a car and he later surrendered at the 104th Precinct, sources said.

Staten Island

A brutish boyfriend choked his girlfriend in their West Brighton home, authorities said.

Santiago Guzman, 26, attacked the woman at 2:45 p.m. in a Greenleaf Avenue residence as she held the couple’s month-old girl, according to court papers.

Guzman then punched the woman in the face after she lost consciousness and dropped the infant, sources said.

The thug never hit his child, sources added.

The victim and her daughter were treated at Richmond University Medical Center and released.

Guzman was arrested several hours after the attack. Doug Auer and Lorena Mongelli