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 Manchester Arena bomber's brother had a front garden that looked like a "pizza shop" because he hoarded empty cans from work, a court heard.

Manchester Arena attack: Brother's garden 'full of metal tins'