Matter of John Z.
This case involves an appeal from an order recommitting the respondent to petitioner's custody due to a dangerous mental disorder. The respondent, with a history of multiple killings and a prior finding of not guilty by reason of mental disease or defect, had his parole revoked after exhibiting aggressive and threatening behavior upon conditional release. The Supreme Court determined he suffered from Antisocial Personality Disorder with narcissistic and paranoid features, which was deemed a dangerous mental disorder justifying civil confinement under CPL 330.20. The appellate court affirmed, rejecting the argument that the diagnosis was legally insufficient and upholding the finding of current dangerousness based on expert testimony, the respondent's history of violence, and his lack of insight into his condition.