David Brown Jr., the 27-year-old son of Dallas PD's Chief David Brown, has PCP and marijuana in his system when he shot and killed a Lancaster officer and bystander on Father's Day, the Dallas Morning News reports.
Brown had been shot nine times, the autopsy also showed.
Lancaster Officer Craig Shaw responded to the apartment where Brown lived, after Brown's girlfriend called police to say he was having a "psychotic breakdown."
According to the report:
The drug PCP can cause a psychosis akin to schizophrenia and extreme violent behaviors. Users often display extraordinary strength and a feeling of being invulnerable. Street users frequently mix marijuana and PCP which is known as "wacky weed" or "wack."