Boy claims abuse in trial for killing neo-Nazi dad

(CBS/AP) A defense psychologist has testified that a boy charged with killing his neo-Nazi father was subjected to an intense history of abuse, which began shortly after his birth and continued for a decade.

At 4:02 a.m. on a May morning last year, 10-year-old Joseph Hall allegedly pointed his family's .357 Magnum at his father's ear and pulled the trigger. Jeff Hall, a rising star in America's largest neo-Nazi group, died instantly. As Joseph, now 12 years old, goes to trial in California, new details have emerged about the boy's history of abuse at the hands of his father.

As reported by the Riverside Press-Enterprise, defense psychologist Robert Geffen testified yesterday that the boy was sexually abused, beaten with a belt, and forced to eat from the floor. Geffen also said that Child Protective Services was involved in the case, making contact with the boy almost two dozen times.

Joseph has pleaded not guilty by the reason of insanity, but prosecutors will try to prove that the boy killed his father to keep him from splitting up with his stepmother.

60 Minutes reported on the case in September 2011. As Lesley Stahl reported, young Joseph was often present at meetings of the neo-Nazi group known as the National Socialist Movement. Through his father's involvement in the group, Joseph was exposed to guns and discussion of gun violence at NSM meetings, and he even accompanied his father on patrols at the Mexican border.

Prosecutors showed a video Jeff Hallmade just hours before he died in which he is heard bragging that his young son knows how to use a weapon, reports CBS Los Angeles. "My son was able to operate a Gen-1 night vision and then a scope at the age of 9," Hall said.

Below, watch Lesley Stahl's 60 Minutes report on the murder of Jeff Hall, which includes revealing interviews with Hall's family and offers a rare look inside the world of the neo-Nazi movement in America.