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 man who stabbed a fellow dog walker in the neck in an "unprovoked" attack has been jailed for more than 10 years.

Man who stabbed dog walker in 'unprovoked' attack jailed