Oct. 28, 1960: Paul Coates gets an anonymous letter about teenage violence.

“I was born in what you'd call the slums, I guess, but at the age of 10 I moved to a better neighborhood. Still, it's not the best. I go to Virgil Junior High.

“I go to school with kids who belong to street gangs and who are always popping in and out of Juvenile Hall. I hear so much every day that it doesn't shock me the way it used to."