‘All That’ star Christy Knowings’ cause of death revealed after tragic death at 46

Former Nickelodeon and All That star Christy Knowings dies aged 46 after reported asthma attack

Amanda Bynes looks somber as she steps out in LA following death of her All That co-star Christy Knowings

Christy Knowings, former 'All That' star, dies at 46