AP Photo/Doug Pizac

Did Demerol kill Michael Jackson? Michael Jackson’s family were reportedly terrified that his escalating dependence on prescription drugs had become a danger to his life — and The Jacksons fear his addiction may have finally killed him.

TMZ, who were first to report the King of Pop’s death, has the scoop….

Jackson received a daily injection of a synthetic narcotic similar to morphine — Demerol — and yesterday he received a shot at 11:30 AM….

Meanwhile, the site says the doctor that gave him the shots is nowhere to be found.

Pop music legend Michael Jackson was pronounced dead at 2:26 p.m. at UCLA Medical Center in Los Angeles on Thursday. He was 50.