<human>:  Why did Julia’s father kill her mother?
<bot>: Julia’s father was a narcissist. He had a mental illness, and was a psychopathic killer. He killed his wife and daughter because he felt that they were taking his attention away from him. He felt that they were taking his glory. He killed his wife because she was the love of his life. He killed his daughter because she was his pride and joy. He was a psychopath, and he killed them because he wanted to feel powerful.