Psychologist testifies as to school shooter Bryan Oliver's mental state

A psychologist testified Wednesday morning that Bryan Oliver has bipolar disorder and experienced a "disassociative" episode the day he opened fire with a shotgun in a Taft Union High School classroom.
Called as a defense expert witness, Dr. Thomas Middleton said Oliver suffered post-traumatic stress disorder caused in part by bullying he experienced over the years. He said Oliver's bipolar disorder combined with a manic episode to lead to the