Los Angeles (CNN) -- Michael Jackson "had a real monkey on his back" with a longtime drug addiction, his family kept it secret from the world and it led to his overdose death, a lawyer for AEG Live said.
The concert promoter's defense against the Jackson family's wrongful death lawsuit began Tuesday and will include testimony from "all of the many, many doctors" who treated Jackson over the past decades, AEG Live attorney Marvin Putnam said.
AEG Live executive John Meglin, who is the CEO of the Concerts West division, returns to the stand Wednesday after testifying Tuesday that Dr. Conrad Murray's request for $5 million to work as Jackson's personal physician was a topic at a meeting of the company's executive committee. Jackson lawyer Brian Panish said that was an important revelation that would help his case.
Panish pressed Meglin on the question of if he agreed with his boss, AEG Live President Randy Phillips, who testified that he thought Jackson was the greatest artist of all time.
"I think that Michael's very big in the pop world, but the Rolling Stones are bigger, or Led Zeppelin," Megline said. "I'm a rocker."
Defense witnesses will also include a parade of Jackson family members, including a return appearance by matriarch Katherine Jackson, who just concluded two days of testimony as her lawyers presented their case.
"They kept his private world private as best they could and now they would like to blame somebody else for things that only they knew privately," Putnam said.
Michael Jackson's mother and three children contend AEG Live, which was producing and promoting his comeback concerts, is liable in his death because it negligently hired, retained or supervised Murray.
Murray was convicted of involuntary manslaughter in Jackson's death, which the coroner ruled was caused by an overdose of the surgical anesthetic propofol. The doctor told investigators he was using the drug to treat Jackson's insomnia as he prepared for his "This Is It" debut in London.
Jackson, not AEG Live, chose and controlled Murray, Putnam argued. He said in his opening statements at the start of the trial 12 weeks ago he would show jurors "ugly stuff" about Jackson to prove that AEG Live executives had no way of knowing about the dangerous treatments the doctor was giving in the privacy of Jackson's bedroom.
Michael's mom speaks
The appearance of Katherine Jackson, Michael Jackson's 83-year-old mother, as a concluding witness in her case gave Putnam a chance to probe what family members knew about Jackson's drug abuse history.
"There are a lot of enormous inconsistencies in what is being said and what the truth is," Putnam told reporters Monday after he finished his cross-examination of Katherine Jackson.
She "reported to the world and to the press that he never had a problem with prescription drugs," that he never entered drug rehab and that the family never attempted an intervention to stop his drug use, he said. "As we now know, Michael Jackson had a longtime problem with prescription drugs, so what had been told to the world during his lifetime wasn't true."
The Jackson family's lawyer, Brian Panish, said AEG Live executives were "in the best position to help Michael Jackson" when they saw his health deteriorating in the last two months of his life.
Show director Kenny Ortega sent a series of e-mails to top AEG Live executives warning them that Jackson showed "strong signs of paranoia, anxiety and obsessive-like behavior" at a rehearsal.
"I think the very best thing we can do is get a top psychiatrist in to evaluate him ASAP," Ortega wrote. "It's like there are two people there. One (deep inside) trying to hold on to what he was and still can be and not waiting us to quit him, the other in this weakened and troubled state."
Production manager John "Bugzee" Houghdahl sent an e-mail to producers saying he "watched him deteriorate in front of my eyes over the last 8 weeks. He was able to do multiple 360 spins back in April. He'd fall on his ass if he tried now."
"They knew he was having a problem," Panish said. "He needed them for this concert. They could have easily told him, 'Look, until you go see the appropriate doctor and come back, we're not going on with the rehearsal.' They're the only ones that really had the ability to do something about it and they chose not to."
Ortega testified this month that he thought AEG Live should have halted production on the show until Jackson was well.
Despite the e-mail evidence and testimony, Putnam insisted Monday that AEG Live executives knew nothing about Jackson's failing health.
"They had little interaction with Michael Jackson in terms of the production and promotion of that," Putnam said, adding that the executives "certainly" did not know "that he was having any problems."
But Panish said the executives should have known: "He was deteriorating in front of their own eyes."
"They watched him waste away," Katherine Jackson testified.
Jackson testified in her first day on the stand Friday that she filed the lawsuit "because I want to know what really happened to my son."
During cross-examination, the AEG Live lawyer played a clip from an interview she gave to NBC a year after her son's death in which she said Michael Jackson had hired the doctor. In response, her lawyer argued she made the statement before seeing AEG e-mails indicating that the company hired him.
Putnam questioned her about a statement she and several of her children signed in 2007 accusing People Magazine of publishing "untrue and inaccurate information" about Michael Jackson's drug use.
"We categorically deny ever planning, participating in, or having knowledge of any kind of intervention, whatsoever," the statement read.
Katherine Jackson acknowledged, however, that she participated in an attempted intervention with her son at his Neverland Ranch in 2002.
"I wanted them to stop lying," she testified, referring to the magazine. "I was worried about all the lies they were telling about the family."
"Was it a lie to say your son had a problem with prescription drugs?" Putnam asked.
"He did not have a problem," she insisted.
Putnam later asked Jackson's mother if she liked to "shut your ears to bad things."
"I don't like to hear bad news," she said.
Jackson appeared combative at times when Putnam cross-examined her, punching back at his questions.
"What does this have to do with my son dying?" she replied at one point.
"I think she was badgered, but that wasn't the first time," Panish told reporters later. "In her deposition, she was asked questions like, "Does your husband ever beat you?'"
For the pretrial deposition, she was questioned for about 12 hours over three days.
Putnam denied he was being overly aggressive in his questioning of her.
"I just wanted to know the facts from her and there was no reason to be aggressive with her," he said. "She was combative, but you can't blame Mrs. Jackson for that. None of us want to find ourselves in a situation where we're having to confront the very public death of our child."
Putnam refused to discuss why he asked Katherine Jackson in the deposition if her husband, Joe Jackson, ever beat her.
"What occurred in those depositions was confidential at Mrs. Jackson's request, therefore I am not at liberty to go into to the private matters that we went into in that deposition," Putnam told CNN. However, Katherine Jackson and her lawyer both brought up the question in court Monday.
"I am not going to go into what we went into about the very tragic history Michael Jackson had with his parents and father over the period of his life," Putnam said. "That is something we did not go into on the stand because it is not relevant. I'm not bringing that up."
Testimony is expected to last into September, the judge told the jury.