Kimberly Cunningham (S05E04)

Having known her sister's boyfriend for 18 years, she felt a deep sense of trust towards him. He was like an uncle to her three kids, frequently welcoming them to his house. As she began to search for answers to her 16-year-old daughter's depression, he was the last person she suspected. However, her world shattered when she learned that he had been abusing her children.