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: A convicted killer was tied up and strangled in his cell by two inmates who were also serving life sentences for murder, a court heard.

Killer 'strangled by other inmates at HMP Long Lartin'