of-Spain, Ramadan 10, 1434, Jul 19, 2013, SPA -- Police in Trinidad say a father and his two children were stabbed to death and his wife and another child were seriously injured by a man who attacked them in their home. Authorities say the suspect, identified as Sylvan Alladin, arrived at the home of Berricou Subhan late Thursday and began arguing with him before he pulled out a knife. He killed Subhan, his 14-year-old daughter and his 5-year-old son, AP reported. Police said officers killed Alladin when they arrived at the house and saw him stabbing a 6-year-old girl who survived. Police say a fourth child escaped without injury. It is unclear what led to the argument.