Neurologist Disagrees: Defender Theorizes Mass Murder planned Attack with "Internet-ED" Radicalization

Leading neurologist presents testimony in federal court contradicting defense claims that murderer diagnosed with neurological disorders, impairing capacity to form intent.
Defense experts had previously testified murderer suffered psychosis, brain abnormalities.
Murderer convicted for killing 11 worshippers, injuring others, during 2018 attack targeting Pittsburgh synagogue.
Penalty phase underway; defense seeks life, prosecution death penalty.
Neurologist argues murderer's radical anti-Semitic views developed independently, fueled by online propaganda, not mental illness.