Federal authorities say a South Carolina teen accused of plotting to blow up his high school told police that he wanted to die, go to heaven and kill Jesus.

A dark portrait of Ryan Schallenberger emerged Tuesday in a federal courtroom as prosecutors argued the teen needs a psychological evaluation.

An ATF agent says Schallenberger told a sheriff about his wish to die after his arrest. Prosecutors also played a 911 tape of the teen's mother calling police after he smashed his head into a wall. She says on the tape her son threatened to shoot police if they were called to his home.

Authorities say the teen bought materials to make several bombs and had written a journal detailing his plans to attack Chesterfield High School.