Isaac D’wayne Shaffer-Parker
Isaac D’wayne Shaffer-Parker, 25, was found dead in his cell at the Lawton City Jail on June 3, 2023, during a routine 7 a.m. check. The Oklahoma Chief Medical Examiner listed the probable cause of death as acute water intoxication due to psychogenic polydipsia in the setting of schizophrenia, and the manner as an accident. The Lawton Police Department asked the Oklahoma State Bureau of Investigation to investigate the death, and no findings had been released when that request was reported.
Cause of death, as reported: Died of illness. The Oklahoma Chief Medical Examiner listed the cause as acute water intoxication due to psychogenic polydipsia in the setting of schizophrenia and the manner as an accident; the Oklahoma State Bureau of Investigation investigated with no cause released as of the report.
Reported by: Oklahoma Chief Medical Examiner (medical examiner or coroner); Oklahoma State Bureau of Investigation (outside investigators).