Closing arguments expected as defense presses mental illness claim in synagogue shooter trial

Robert Bowers is on trial for the 2018 Pittsburgh synagogue shooting that killed 11 people.
The defense argues Bowers' schizophrenia and delusional beliefs motivated the attack.
Expert witnesses offered conflicting testimony on Bowers' mental state.
The defense presented evidence of Bowers' difficult childhood and history of mental health issues.
Prosecutors are seeking the death penalty while the defense argues for leniency citing mental illness.