Family bickers over whereabouts of Michael Jackson's mom

LOS ANGELES (CNN) -- A lawyer for Katherine Jackson is asking the FBI for help, saying Los Angeles County sheriff's deputies were not allowed to see Michael Jackson's mother in Arizona as part of a missing person investigation Monday, July 23rd.

"Randy's security refused to allow them in," attorney Sandra Ribera told CNN Monday. She said she was referring to Randy Jackson, Katherine Jackson's youngest son.

Still, a law enforcement officer did speak to Jackson in Arizona, satisfying the investigators' concerns, Los Angeles County Sheriff's spokesman Steve Whitmore said Monday afternoon.

"Katherine Jackson has been located and she is fine and with family," Whitmore said. "Our missing persons case is closed."

Because the 82-year-old matriarch of the Jackson music dynasty was taken across state lines, Ribera said earlier, she hopes the FBI will investigate the circumstances of what she called her disappearance.

It is the latest chapter in a messy dispute between several of Jackson's children and her advisers over her finances and legal affairs.

The lack of contact with her since July 15 led her nephew Trent Jackson to file the missing person report with the Los Angeles County Sheriff's Department late Saturday, Ribera said.

An Arizona law enforcement officer reported that he met with Katherine Jackson on Sunday in the presence of Rebbie Jackson, her oldest daughter, and she said was "fine" and did not want to return to California, a source close to the investigation said.

Jermaine Jackson, in a statement posted on Twitter Sunday night, said his mother "is safe and well in Arizona with her daughter and our sister, Rebbie, resting up on doctor's advice."

But Michael Jackson's three children, who have lived with their grandmother since their father's death three years ago, still have not heard from their grandmother a week after she the Calabasas, California, home, Ribera said.

Jermaine Jackson's statement insisted the children were not "being 'blocked' from speaking with Mother."

"She is merely an 82-year-old woman following doctor's orders to rest up and de-stress, away from phones and computers," he tweeted.

His statement did not explain why Paris Jackson, the 14-year-old daughter of Michael Jackson, was rebuffed in several attempts to reach her grandmother on the phone. That led to Paris posting messages on Twitter early Sunday pleading for help in finding her.

"Yes, my grandmother is missing," Paris tweeted. "I haven't spoken with her in a week i want her home now."

She asked anyone who sees her grandmother to call police, even publishing her bodyguard's phone number.

Paris and her brothers, Prince and Blanket, have been in Katherine Jackson's custody since their pop icon father died three years ago.

Jackson "has never gone 24 hours without talking to her kids," Ribera said. "I'm concerned that she would never do this. We have no idea what's going on with her. No one has talked to her."

Jermaine Jackson's statement said he and his siblings took their mother to Arizona "in line with doctor's advice following a check-up."

Dr. Allan Metzger was brought into Jackson's home "under false pretenses" on July 14 by saying he was sent by her primary care physician, Ribera said. "We came to find out that her doctor has no association with Dr. Metzger."

Metzger was a defense witness in the trial of Dr. Conrad Murray last year, testifying that he treated Michael Jackson off and on for two decades for "his profound sleep disorder." Murray was subsequently convicted of involuntary manslaughter in Jackson's death.

"The same doctor that testified on behalf of dr murray saying my father was a drug addict (a lie) is caring for my grandmother ... just saying" Paris Jackson tweeted.

The doctor advised Katherine Jackson that it was better for her to take a plane on a trip planned for the next day, rather than ride in a RV driven by Trent Jackson, Ribera said.

Jackson left with her oldest daughter, Rebbie, the next day to fly to Albuquerque, New Mexico, to attend a Jackson brothers concert two days later, she said. But she never arrived at the concert, Ribera said.

A letter was made public Wednesday in which two daughters -- Rebbie and Janet -- and three sons -- Jermaine, Randy and Tito -- charge that Jackson was being mistreated by the executors of Michael Jackson's estate and badly advised by her manager and lawyer.

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