How Did Michael Jackson Die—and the Trial that Followed

On the morning of June 25, 2009, inside a rented mansion in the Holmby Hills neighborhood of Los Angeles, Michael Jackson lay unresponsive in his bedroom.

Just weeks away from a planned comeback that was supposed to redefine the final chapter of his career, the world’s most famous pop star was instead at the center of a medical emergency that was quickly spiraling out of control.

Paramedics arrived to find Jackson in cardiac arrest. Attempts to revive him continued en route to Ronald Reagan UCLA Medical Center, but by early afternoon, he was pronounced dead.

Almost immediately, questions began to surface. Jackson had not been alone. At his side that morning was his personal physician, Conrad Murray—a doctor who, within months, would find himself facing criminal charges in a case that would blur the line between medical care and criminal liability.

In the months leading up to his death, Jackson had been rehearsing intensely for his planned “This Is It” concert series in London. The shows were intended to mark his return to live performance after years away from the stage and were expected to generate hundreds of millions of dollars.

Behind the scenes, however, Jackson struggled to sleep. According to testimony later presented in court, he suffered from chronic insomnia, often unable to sleep for days at a time. Rest became an obsession, something he pursued with increasing urgency as the concert dates approached.

Murray, a cardiologist who had been hired earlier that year to oversee Jackson’s health during rehearsals, was tasked with helping him rest. The unusual arrangement reportedly earned Murray $150,000 per month. Murray was not simply a consulting physician; he was effectively on call around the clock, living within Jackson’s orbit.

Murray eventually admitted to police that he had been administering propofol—a powerful anesthetic typically used in hospital settings to induce and maintain unconsciousness during surgery—as a sleep aid. The drug, commonly used in operating rooms to induce anesthesia, is designed for controlled medical environments. Patients receiving propofol require continuous monitoring—oxygen levels, heart rate, breathing—all overseen by trained professionals with emergency equipment immediately available. 

Instead, according to prosecutors, Murray created a nightly routine in which propofol was administered to help Jackson sleep. 

In the early hours of June 25, Jackson again struggled to sleep. Murray told investigators that he first tried a series of sedatives throughout the night, but nothing worked. As morning approached, he gave Jackson propofol through an IV line.

At some point, Jackson stopped breathing. What happened next became the central question of the case. Murray said he stepped away briefly and returned to find Jackson unresponsive. He attempted CPR but did not immediately call 911. Instead, a member of Jackson’s staff made the emergency call, approximately 82 minutes later. Paramedics arrived to find Jackson in cardiac arrest, but Murray failed to tell them about the propofol. Doctors continued resuscitation efforts for more than an hour before declaring him dead at 50 years old at Ronald Reagan UCLA Medical Center.

The Los Angeles County Coroner’s Office determined that Jackson died from acute propofol intoxication, with other sedatives, including benzodiazepines, also present in his system. The death was ruled a homicide. After Jackson’s death, law enforcement had found prescriptions for nearly 20 different powerful medications.

Investigators quickly focused on Murray’s actions, raiding his Houston offices as part of their case. They found that the doctor had been administering propofol outside of a medical facility without the proper monitoring equipment. There was no continuous oxygen supply, no advanced cardiac monitoring and no backup personnel trained to respond to an emergency.

Even more troubling, prosecutors argued, was Murray’s response once Jackson went into cardiac arrest. They said he failed to act with urgency, delaying a call to emergency services and not following standard resuscitation protocols. Murray had also administered a second drug— flumazenil—to offset the propofol, which could have worsened Jackson’s condition.

In February 2010, Murray was charged with involuntary manslaughter, to which he pleaded not guilty.

Murray’s trial began in September 2011 and drew global attention. Prosecutors framed the case as one of gross negligence. They argued that Murray had abandoned the most basic standards of medical care by administering propofol in an unsafe environment and failing to properly monitor his patient.

They laid out a timeline in which Murray administered a dangerous anesthetic in a non-medical setting, failed to properly monitor his patient, and did not respond appropriately when Jackson went into cardiac arrest. Expert witnesses described the setup in Jackson’s bedroom as dangerously inadequate. Even small errors in administering propofol, they testified, could have fatal consequences without immediate intervention. The prosecution also pointed to Murray’s actions after Jackson stopped breathing, noting that he’d made phone calls and sent emails rather than immediately calling emergency services.

Murray’s defense team offered a different narrative. They argued that Jackson had self-administered a fatal dose of propofol while Murray was out of the room, a claim intended to shift responsibility away from the doctor. They also suggested that Jackson had developed a dependency on sedatives and had been pressuring Murray to provide stronger medications.

But prosecutors countered that, regardless of Jackson’s behavior, Murray had a duty to protect the singer—and had failed to do so.

On November 7, 2011, after less than two days of deliberation, the jury found Murray guilty of involuntary manslaughter. The verdict marked a rare instance of a physician being criminally convicted for actions related to patient care.

Later that month, Murray was sentenced to four years in prison, the maximum penalty allowed under the law at the time. The judge cited Murray’s “gross negligence” and the vulnerability of his patient as key factors in the decision.

However, due to California’s prison realignment policies aimed at reducing overcrowding, Murray served approximately two years before being released in 2013.

Jackson’s death prompted renewed scrutiny of the use of powerful sedatives and anesthetics outside hospital settings, particularly among high-profile patients with access to private medical care. The case also raised broader questions about the responsibilities of physicians when treating influential or demanding patients. Medical experts pointed to the dangers of abandoning established standards in response to pressure, no matter the circumstances.

Though Jackson’s planned “This Is It” concerts were canceled, the rehearsal footage was later released as a documentary film.

Murray, meanwhile, maintained that he had not intended to harm Jackson. In interviews following his release, he continued to assert that Jackson bore some responsibility for his own death. Murray had his medical licenses in several U.S. states suspended after his conviction, and following his release from prison, he returned to his native Trinidad and Tobago, where he later opened a medical clinic.