An investigation into the December death of an Oklahoma State Penitentiary inmate reveals the inmate died of methamphetamine overdose.
Mark A. Stacey, 43, was found unresponsive in his cell by security staff at the prison at 6:55 p.m. on Dec. 9. According to court records, the Oklahoma State Medical Examiner’s office determined Stacey’s manner of death was accidental and his cause of death was acute methamphetamine toxicity.
“During the autopsy two balloons were found in Stacey’s gastrointestinal system,” court records state, “one was intact (and) the other was ruptured.” According to court records, the balloons found in Stacey’s digestive system were sent to a lab to be tested and it was determined the substance in the balloons was methamphetamine.
Oklahoma Department of Corrections Internal Affairs investigators contacted OSP officials and requested visiting records for Stacey. According to an affidavit, Stacey received a visitor at the prison on Dec. 8, the day before his death.
Authorities then interviewed Monica Mae Jackson, 36, of Keota. Jackson visited Stacey at the prison on Dec. 8 and allegedly gave him the two balloons full of methamphetamine, according to the affidavit. Stacey allegedly swallowed the two balloons full of methamphetamine during his visit with Jackson at the prison.
Jackson was charged April 18 in Pittsburg County District Court with one felony count of bringing contraband (drugs) into a penal institution. If convicted, she is facing up to five years in prison.
At the time of his death, Stacey was housed on the prison’s A-Unit, according to OSP Warden’s Assistant Terry Crenshaw. He was serving time for a drug conviction out of Oklahoma County.
Stacey had been incarcerated on and off with the Oklahoma Department of Corrections since March of 1994, according to the website. He began serving his latest term in March 2010, according to Crenshaw, and began serving time at OSP in November 2011.
He was scheduled to be released from custody in June 2019 and had a parole hearing scheduled in June 2013.
Jackson posted a $5,000 bond and was released from custody at the Pittsburg County jail. She is due back in court May 10 at 9 a.m.
Contact Rachel Petersen at firstname.lastname@example.org.