Twins Family Dynamics Parents Parenting Child Development Brother-Sister Relationships Supportive Behavior Child Reactions Child Safety Naming Trends Birth Order Family Structure Brothers Daughter Sienna Relatives Spurgeon Parental supervision 8-year-old Girl Blended family Mother Robert De Niro's Children Victims Grandchildren Tragedy Brother Paris Jackson Birthday Party Parental Responsibility Fatal Family Tragedy Survivors Blended families Birthplace Dog Attack Family Traditions Hand-me-downs Big Sister Role