A Riverside County judge on Monday found a 12-year-old boy guilty of second-degree murder in the shooting and killing of his father, neo-Nazi activist Jeffrey Hall, as he slept on the family’s living room couch.

He also was found guilty of a weapons charge, with the judge determining he knew right from wrong.

The youngster, just 10 years old when he pulled the trigger in May 2011, was charged as a juvenile and can be held in custody only until he is 23.

A separate hearing will be held to determine whether the boy should be sent to a juvenile detention center run by the state Department of Corrections, sent to an alternative treatment facility or placed on probation.

Testimony and evidence in the case, which began in October, revolved around the boy's upbringing and a family life steeped in the hatred and violence of the neo-Nazi movement, with psychologists focusing on whether those circumstances altered his capacity to realize that killing his father was wrong.