Netflix docuseries inmate John "Eastside" McAllister's cause of death remains a mystery, but RadarOnline.com learned that life-saving efforts were made when he was found "unresponsive" in his bunk at the Randall Williams Correctional Facility in Arkansas on June 2.Advertising Inquiries: https://redcircle.com/brandsPrivacy & Opt-Out: https://redcircle.com/privacy