The Jackson family has paid tribute to Lisa Marie Presley following her unexpected death on January 12th at the age of 54.

She suffered cardiac arrest at her Calabasas, California, home, and her former husband's family, Michael Jackson, issued a statement expressing their sympathy.

The Jackson estate fondly remembered their bond and thanked her for her generous love, concern, and care, which offered him comfort in times of need.

The public may have been surprised to hear of Lisa Marie and Michael's touching sentiment. However, their marriage in the '90s was not as blissful as some had thought.

Now a newly-released manuscript is shedding light on the difficulties the King of Pop and his wife faced during their 18 months together - including his reliance on painkillers, which ultimately caused them to part ways. Radar Online has uncovered this information.

Michael and Elvis Presley's daughter had been great friends for many years until something changed.

In 2003, she revealed that her feelings for him were more profound than friendship.

It all started in 1984 when he experienced a traumatic incident while filming a Pepsi commercial; he was left with severe third-degree burns on his scalp, which caused him to become dependent on prescription painkillers.

Lisa Marie spoke of an all-too-familiar tale: "I'm a sucker for that 'poor misunderstood person' story."

Indeed, in 1993 Michael Jackson's desperate plea to Lisa Marie for help revealed the depth of his despair. Drugs had blurred the lines between reality and fantasy - he thought he was speaking to Debbie Rowe, his future wife.

It was clear that something wasn't quite right with Michael's behavior, but the source reports that his intended bride paid it no mind until the "Thriller" singer addressed her as Debbie.

Surprisingly, Lisa Marie agreed to his proposal.

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Just two months after their Dominican Republic wedding, Michael and Lisa Marie's marriage was already on shaky ground.

An insider revealed at the time that this downfall was mainly due to Michael's addiction to painkillers.

This became a consuming part of his life which made him increasingly unsteady.

As a result, Lisa Marie started spending less time at Neverland Ranch, opting for her bedroom when she did stay there.

The relationship between Lisa Marie and Debbie created tension in her bond with Michael.

A source close to the situation commented, "It was obvious to Lisa Marie that Michael had turned to Debbie for access to drugs."

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