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: The widow of the first murdered Police Service of Northern Ireland officer has spoken of her "pity and disgust" for his killers.

Constable Carroll's widow's 'pity and disgust' for murderers