Transcript for Casey Kasem Never Wanted to Be Radio DJ
take a moment to remember an American voice. The passing of a radio icon. Casey kasem has died. For 40 years, he brought us the American top 40. He never wanted to be a radio deejay. Michelle Franzen with a look back at the man who left his fans with a message. Reporter: His voice was legendary. Spanning the air waves for decades. Counting down our hits. Countdown of the most popular songs in the usa. Reporter: He was born in Detroit, Michigan, in 1932, to Lebanese parents. Ironically, kasem never wanted to spin records. I wanted to be a baseball player and actor. Not a disc jockey. Reporter: Everywhere he turned there was a radio. First a radio show in high school. He spent time in Korea drafted by armed forces radio. The number one song in the usa -- Reporter: His pioneering show "American top 40" launched July 4, 1970. A whole new generation knew him in cartoons. His most famous cartoon character, shaggy, from "Scooby-doo." He shocked fans in 2004 when he stepped down, handing the microphone to Ryan Seacrest who said, it's a sad day for the broadcasting community and for radio listeners around the world. Kasem later developed Lewy body dementia. A degenerative condition similar to Parkinson's disease. Eventually leading to a bitter family feud. Shame on these children. Reporter: A judge made his children his care takers. Last week, they were allowed to stop his medications and food. His daughter, Kerri, tweeting, he died this father's day, surrounded by friends and family. Even though we know he's in a better place and no longer suffering, we are heartbroken. That memorable voice now part of history. Till then, keep your feet on the ground and keep reaching for the stars. Reporter: Michelle Franzen, ABC news, New York. Michelle, thank you. He'll be missed.
This transcript has been automatically generated and may not be 100% accurate.