Cops busted a 19-year-old Brooklyn man in connection to a fatal shooting earlier this week at the Bushwick Houses, authorities said Wednesday.

Elijah Harris, who lives less than a mile away at the Marcy Houses, was arrested and charged with murder, assault, two counts of criminal possession of a weapon and reckless endangerment, officials said.

Kyon Jackson, 15, was gunned down Tuesday at 2:48 p.m. in an attack that also wounded a 42-year-old man.

There was another shooting about three blocks away at 1 p.m. on Tuesday, cops said. A 16-year-old was shot in the abdomen and expected to survive.