Four Las Vegas teenagers pleaded guilty Tuesday to voluntary manslaughter in the fatal beating of their high school classmate, as part of a deal with prosecutors that kept them from being tried as adults.

The teens originally were charged in January as adults with second-degree murder and conspiracy in connection with the November death of 17-year-old Jonathan Lewis Jr. ...

KLAS says Ready criticized the plea agreement before, claiming she wasn't notified of the deal when the teens initially accepted it on Aug. 1.

"I would've disagreed with the deal entirely. They should be accountable as adults — they made an adult choice," she said. "They knew that when they were stomping on my child's head that he was going to die as a result."