The gospel singer and 'American Idol' alumna, who won a Grammy for her album "Overcomer: The Greatest Hits," was found dead in her Tennessee home on April 18. She was 47.

Terry Wyatt/Getty Image Mandisa’s dad, John Hundley, opened up about the circumstances that may have led to the late American Idol contestant’s death. “But here's what I think happened,” he said during her celebration of life service on Saturday,

A California native, Mandisa rose to national prominence during season five of “American Idol,” where she finished in the top 9. She released her debut album, “True Beauty,” in 2007. Her biggest release, “Overcomer,” earned her a Grammy for Best Contemporary Christian Music Album.