How can someone be schizophrenic AND in sufficient command of their mental capacities to be culpable for their actions?

JEFFREY DAHMER/ANDREA YATES

Serial killer Jeffrey Dahmer was thought to suffer from paranoid schizophrenia but his bid for a not-guilty-by-reason-of-insanity verdict failed. Essentially, the jury accepted that he was schizophrenic but that he was still culpable for his behavior.

Similarly, Andrea Yates, who drowned her five children in the bathtub, was purported to be schizophrenic by one of the courts examining psychiatrists. She, too, was held accountable for her actions, failing an NGRI (not guilty by reason of insanity) bid.

Please answer the following questions.

1. How can someone be schizophrenic AND in sufficient command of their mental capacities to be culpable for their actions?

2. Should anyone who is schizophrenic have an automatic pass to NGRI out of criminal offenses?

3. Discuss your opinion regarding the case of either Jeffrey Dahmer or Andrea Yates.

Note;
Please use only Abnormal Psychology; 14th e, Butcher/Mineka/Hooey

as a source