Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: In 1973, a 20-year-old man murdered and mutilated his friends' three young children. No motive has ever been established and he has never expressed regret. Now, 45 years after being jailed, David McGreavy is due to walk the streets again.

Triple child murders: The lodger who destroyed a family