If there is one thing we here at DGIS keep harping on it's; don't mess with the police. Especially if you're in the early Twentieth Century. 24 year old James Stevens, a member of Brooklyn's Sanford Street gang did not heed this advise.
It started two weeks previously when off duty police officer Francis Walsh was on his way home from a friends house. Hearing a gunshot he ran to the scene and arrested a young man named James Rubianto. James' friend, the aforementioned James Stevens, was on hand and verbally taunted Walsh. Walsh told Stevens to butt out. Stevens then threatened to "plug" the officer.
Two weeks later, this date in 1913, Walsh stepped out of his building an started on his way to work. A guy approached him and told him that Stevens was in a doorway a couple of blocks away and said that he was going to get Walsh that night.
Walsh decided to settle things that morning. He went to the building where Stevens was but was met at the door by Rubianto. The latter tried to bar his entrance so the officer arrested him. As they were exiting the building Stevens fired two shots from inside.
Rubianto made a break for it and Walsh gave chase. Meanwhile Stevens ran from the building. Another cop, responding to the shots, turned the corner and saw Stevens taking aim at Walsh and yelled to his brother officer. Walsh spun around and plugged Stevens in the abdomen with a shot. Steven's ran a half dozen steps and dropped dead.