On a cloudy afternoon in the Bayview district, Shaquille, 21, was riding in his sister’s 1991 Acura when another car ran a stop sign, narrowly missing them.

Both cars screeched to a halt, and Shaquille and the other driver got out. “I just wanted to talk,” he recalls.

But the talk became an argument, and the argument ended when Shaquille sent the other driver to the pavement with a left hook. Later that day, he was arrested and charged with felony assault.

He already had a misdemeanor assault conviction — for a fight in a laundromat when he was 19. This time he might land in prison.

[For more of this story, written by Tim Requarth, go to https://www.nytimes.com/2017/0...uroscience.html?_r=0]