Defense Claims Synagogue Killer Suffers from Schizophrenia and Brain Damage

Defense expert testified that Robert Bowers has a history of serious mental illness and abnormal brain function.
Doctors disagree on whether or not Bowers' brain scans show significant damage that could correlate with schizophrenia.
Bowers has been diagnosed with schizophrenia and epilepsy, and has attempted suicide multiple times.
Prosecutors argue that antisemitism motivated Bowers to kill 11 people at a Pittsburgh synagogue.
The trial's sentencing phase will determine whether Bowers receives life in prison or the death penalty.