Jonathan Lewis Jr., 17, was badly injured in the Nov. 1 attack near Rancho High School in Las Vegas. He died less than a week later.

Four teenagers accused of fatally beating a classmate last year in Las Vegas have agreed to plead guilty to voluntary manslaughter, which will keep them from being tried as adults, attorneys confirmed Thursday.

Nine students were arrested in connection with the melee on Nov. 1 involving a large group of people near Rancho High School, in which 17-year-old Jonathan Lewis was critically injured; he later died.