2008_04_amstshooting.jpgThis morning around 6:15 a.m., two people were shot outside the Manhattanville Houses at 1430 Amsterdam Avenue before the gunman shot himself. Now it turns out the shooter was a postal carrier who had gotten into a fight with the men.

NY1 reports that 48-year-old Roberto Caballero "had a confrontation with two men," and shot one man three times in the chest and the other once in the head. Then Caballero went to his apartment and killed himself. The U.S. Postal Service called him a "model employee."

It's unclear what prompted the confrontation. The victims are both in critical condition; the sister of one told NY1, "All I can tell you is that he's a wanted parole felon. He's wanted and he should be arrested. I called the police on him for them to come pick him up."