It would be profiling to identify knockout game perpetrators by race, so the press refers to them as teenagers. One might also think of them as potential purchasers of Skittles who look like sons of the president.
Perpetrators have dubbed the violent practice as the “knockout game,” where teens try to randomly knock out strangers with one punch.
In New York, police have charged Amrit Marajh, 28, with two felony hate crimes after they said he assaulted a 24-year-old Jewish man wearing a yarmulke Friday in Brooklyn, NYPD Sgt. Carlos Nieves said.
Twenty-eight year old teenager.
“There is safety in numbers,” she said. “And if you are by yourself, there is nothing wrong for you to decide to cross the street if you see a group of people walking toward you.”
http://www.usatoday.com/story/news/nation/2013/11/22/knockout-game-arrests/3676649/
This is what a group of people looks like.

Look for Obama to make a speech about this any minute now.