Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: Richard Dyas, 30, from Cwmbran, died on the A468 between Caerphilly and Newport, at about 20:30 GMT on Friday. He was hit by a black Mercedes AMG on a stretch of the road known as the "Machen straight". A 25 year old man, from the Newport area, who was arrested on suspicion of causing death by dangerous driving has been released as inquiries continue.

Pedestrian killed on main Caerphilly road named