Michael Jackson's ex-wife, Debbie Rowe delivered a tearful testimony as well. She said that he took propofol as early as the '90s. He used it as a sleeping aid while on tour in Germany, she said. Rowe also descibed how doctors would compete with each other to treat him. "Michael had a very low pain tolerance, and his fear of pain was incredible, and I think the doctors took advantage of him that way," she said.