Doctor: Colorado theater shooter delusional, still thinks killing will increase self-worth

A nationally known schizophrenia expert says the Colorado theater shooter still believes killing people will increase his self-worth.

Dr. Raquel Gur testified in James Holmes' defense Tuesday, saying he still suffers the bizarre delusions that preoccupied him before he killed 12 people and wounded 70 during a crowded movie premiere. Gur is expected to say she found Holmes was legally insane during the July 20, 2012, attack.

Gur interviewed Holmes for 28 hours and studied his notebook containing plans for the massacre. She says he is philosophical and similarly intelligent to Unabomber Ted Kaczynski, whom she also evaluated.

Gur's testimony is key as defense attorneys argue that Holmes was in the grips of a psychotic episode during the shooting. Prosecutors say he was sane and are seeking the death penalty.