Case 1 (The Bloody Mystery): You are a lawyer on this situation. Mr. Jacob died and left all his money to his two children. Because of Mr. Jacob’s prominent role in society, his death made headlines. Shortly after, a young man named John, who claims to be Mr. Jacob’s long-lost son arrives and demands his share of the inheritance. Mr. Jacob’s two children and their lawyers are skeptical and refuse this young man the money, so he sues. The judge orders blood tests for all the family. Mr. Jacob’s blood type, as it appears on his hospital records, is AB. His wife had blood type A. Mr. Jacob’s two known children were both type B. The young man claiming to be a long-lost son had blood type O.