How did John Ritter die? Wife revisits his misdiagnosed heart condition 20 years later

It's been over 20 years since John Ritter's death, but his wife is more determined than ever to honor his memory.

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,John Ritter ,Amy Yasbeck ,Heart Health Awareness Month ,John Ritter Foundation ,Cleveland Clinic ,Mayo Clinic ,Aortic Dissection ,Heart Attack ,Edical Condition ,