Given the task definition and input, reply with output. 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.

Police in Bangladesh have arrested a man in connection with the murder of atheist writer Avijit Roy.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Bangladesh Avijit Roy murder: Suspect arrested