The children of legendary DJ CASEY KASEM don't know where he is . . . and they got a judge to order an investigation into his whereabouts.
Casey is 82 years old and suffering from advanced Parkinson's disease. He can no longer speak, and his current wife Jean has been moving him to various facilities and keeping his children from seeing him.
Yesterday, Casey's daughter Kerri was appointed her father's temporary caretaker . . . but Jean's attorney told the court he DIDN'T KNOW WHERE CASEY WAS.
He said Casey had been removed from the country . . . but an attorney for Kerri says the kids believe he's on an Indian reservation in Washington state. (???)
(I have no idea who's in the right here. All I'm gonna say is that this is a sad ending for the man who brought us "American Top 40" and was the voice of Shaggy on "Scooby Doo".)