What is the backstory of the character Aurelio, and how does he fit into the John Wick storyline?

Aurelio is a character in the John Wick movie franchise who is portrayed by actor John Leguizamo. He is introduced in the first John Wick film as the owner of a high-end chop shop where John Wick takes his car to get fixed. Aurelio is a friend of John Wick's and respects him greatly, so when John's car is stolen, Aurelio agrees to help him track it down.

Throughout the John Wick movies, Aurelio continues to be a friend to John Wick and provides him with information when needed. Although Aurelio's backstory is not fully explored in the movies, it is implied that he has a criminal past and is familiar with the criminal underworld in which John Wick operates.

Despite his limited screen time, Aurelio has become a fan favorite among John Wick fans due to his loyalty and respect for John Wick. He also serves as a small but important piece of the larger John Wick storyline, providing information and assistance to John Wick throughout his various missions.