Hayden Panettiere’s Family Reveals Brother Jansen’s Cause Of Death: ‘Unthinkable Loss’

Hayden Panettiere’s brother, Jansen Panettiere’s cause of death has been revealed. The “Nashville” star’s family released a statement on Monday sharing that the 28-year-old died from an enlarged heart. “Though it offers little solace, the Medical Examiner reported Jansen’s sudden passing was due to cardiomegaly (enlarged heart), coupled with aortic valve complications,” they told ABC News.