The slain 26-year-old was riding a bicycle on Crown Street and Rogers Avenue in Crown Heights, Brooklyn, around 2 a.m. Tuesday when he was shot in the head by a gunman in a dark-colored sedan, cops said. . The victim – who had been arrested dozens of times in the city – was wearing black rubber gloves when he was shot and investigators believe he had planned the shooting with two other people, police sources said. He was rushed to Kings County Hospital Center, where he was pronounced dead. The shootings are believed to be gang-related. About two hours earlier, a 21-year-old man was shot in the buttocks and back around 11:50 p.m. Monday on East 13th Street near University Place in Manhattan, authorities said. A 26-year-old bicyclist was killed by a shooter at Crown Street and Rogers Avenue in Crown Heights.Robert Mecea He was taken to Bellevue Hospital with non-life threatening injuries, police said. A motive for the shooting is unclear and the victim has not cooperated with investigators, police said. Although the scene is a few blocks from the Halloween Parade route, there is no known connection to any Halloween festivities, police said. The parade traditionally runs along Sixth Avenue from Canal Street to 15th Street. Gloves were left behind on the sidewalk at the Crown Heights shooting scene. Robert Mecea Another shooting also happened around 1:30 a.m. Tuesday at Astoria Boulevard North and Steinway Street in Queens, cops said. The victim, a 27-year-old man who also has multiple prior arrests, was shot in the left arm, left leg and buttocks at Astoria Boulevard North and Steinway Street around 1:30 a.m., officers said. Investigators believe the victim of a fatal shooting in Crown Heights was planning a shooting of his own, police sources said. Robert Metsea The gunman — who appeared to be wearing a black hoodie, black hat and blue jeans — opened fire as he drove south on Steinway Street in a white SUV, possibly a Dodge Durango, officers said. Investigators found six shell casings at the scene. No arrests have been made in either shooting.