A gunman shot and killed three people with a rifle in Brooklyn early Monday morning before taking his own life, police said.
The bloodshed began minutes after midnight at 318 Maujer St. in East Williamsburg. Three people were found dead inside the building and the gunman was found dead on the roof, police said.
Another victim was shot in the arm and was taken to the hospital in stable condition.
Police said there may have been a prior dispute between the gunman and the victims, with a possible link to a music band, according to the Associated Press.
The victims' identities have not yet been released.