'All My Children' actor Alex Musser's cause of death has been revealed. The San Diego County Medical Examiner has concluded that the 50-year-old died from a shotgun wound to his chest due to suicide. The actor's fiancée, Paige Press, first shared the news of his death Friday after he died at their home in Del Mar, California. Press wrote in a series of Instagram stories, "RIP to the love of my life. I will never stop loving you. My heart is broken."