David Rizzo is a physical therapist who works with children and adults with developmental and physical disabilities. He is the author and presenter of a professional rehabilitation seminar entitled "Autism: Where neuroscience meets clinical practice." David and his wife Mercedes have four children, one of whom, Danielle, has autism and is non-verbal. Dave and Mercedes developed picture-based materials and activities to explain the sacraments to Danielle to help prepare her for Holy Communion. This was featured on the Diocese of Trenton television program The Catholic Corner and in the Our Sunday Visitor magazine.