05/14/2014 12:16 EDT | Updated 07/14/2014 05:59 EDT

Casey Kasem's daughter to file missing person report

The search for Casey Kasem is expected to ramp up today, as the daughter of the ailing radio host files an official missing person report after receiving temporary conservatorship of her father earlier this week.

The report is expected to be completed Wednesday and, once filed, it will allow "FBI and local law enforcement to get involved," according to a representative for Kerri Kasem.

A Los Angeles Superior Court judge appointed Kerri Kasem her father's temporary caregiver at a hearing on Monday and also ordered a court investigator and adult protective services to find the whereabouts of the 82-year-old.

The famed American DJ suffers from a type of dementia known as Lewy Body disease and reportedly can no longer speak. He has been in various medical facilities and was last seen by family members at a Santa Monica, Calif., hospital in early May.

Kasem's children, from a previous marriage, allege their father has been isolated, repeatedly moved without warning and kept from seeing them by his wife of 30 years, Jean Kasem.

At Monday's hearing, attorney Craig Marcus, appearing on Jean Kasem's behalf, said he "had no idea" where the radio personality was. He added that Kasem was "no longer in the United States" — a revelation that sparked protest from Kasem's children and concern from the judge.

Troy Martin, a lawyer for Kerri Kasem, said the family believes the former DJ may have been taken to a Native American reservation in Washington state. In an interview with The New York Daily News, Kerri Kasem speculated that her father could also have been moved to a location in Canada.

For some time now, Kasem's family and friends have been feuding with his wife over his care. In October, his children — including daughter Julie, who has medical experience caring for terminally ill veterans and is married to a doctor specializing in cardiovascular medicine — filed a legal petition for conservatorship.

Kasem, whose rose to prominence for his music countdown shows American Top 40 and Casey's Top 40, was also a prolific voice actor for cartoons during the 1980s, including Scooby Doo (for which he voiced the character of Shaggy), Transformers and Super Friends.