When Tricia Somers, a single mother of one, found out she had cancer, she wanted to find a way to help her son. Her devastating diagnosis was a rare, terminal form of vascular cancer in her liver. She wouldn't be around for long, so she asked a huge favor of a nurse she just met. 45-year-old Somers asked her nurse, Tricia Seamen, if she would take care of her 8-year-old boy, Wesley. When the disease took the mother's life, she wanted Ms. Seamen to adopt her son. Seaman was already a mother of three teenage girls and a 10-year-old boy....