In fact, since the beginning Andrew was a patient at the mental rehabilitation center. In other words, Andrew is someone who has a mental disorder. Andrew killed Dolores after seeing their children had been dead drowned by her. Andrew ignored the fact that his wife has depression. Based on information from Dr. Sheehan (Andrew‟s primary psychiatrist), he said that Andrew‟s wife is very dangerous to stay near family and the environment, but Andrew moved close to the lakeside home where their children were drowned. After the incident, Andrew lost in psychosis in starting a new one that is Teddy Edward Daniels. Andrew created the fictional character of the results of his desire to escape from the guilt of having killed his own wife.