LOS ANGELES —
A victory could have meant hundreds of millions of dollars in damages for her and the singer's three children and provided a rebuke of AEG Live, the nation's second-largest concert promoter.
Kevin Boyle, an attorney for Katherine Jackson, said he was disappointed with the verdict.
"We, of course, are not happy with the result as it stands now," Boyle said. "We will be exploring all options legally and factually and make a decision about anything at a later time."
He added: "We think that what we've done with this case is prove some things that are important for the Jackson family and for the concert industry and the sports industry with regards to treatment by doctors."
Boyle declined to answer further questions.
Murray was convicted in 2011 of involuntary manslaughter after giving Jackson the overdose as he prepared for the comeback shows dubbed "This Is It." Witnesses at the trial said Jackson saw the concerts as a chance for personal redemption after being acquitted of child molestation.
But as the opening date of the shows approached, associates testified that he had bouts of insecurity and agonized over his inability to sleep. They said he turned to the drug propofol and found Murray, who was willing to buy it in bulk and administer it to him on a nightly basis even though it is not meant to be used outside operating rooms.
Testimony at the civil trial showed that only Jackson and Murray knew he was taking the drug.
In his closing argument, AEG Live attorney Putnam told jurors the company would have pulled the plug on the shows if executives knew Jackson was using the anesthetic.
"AEG would have never agreed to finance this tour if they knew Mr. Jackson was playing Russian roulette in his bedroom every night," Putnam said.