Complex sentence: Felipe Achinelly Bayá, who was only ten years old, when he accompanied the chief of police in the search of the thief who had killed his father, recognizing him when he was trying to sell Achinelly's belongings in a jewelry store on Victoria Street.
Split into simpler sentences: Felipe Achinelly Bayá, who was only ten years old, when he accompanied the chief of police in the search of the thief who had killed his father. He recognizing him when he was trying to sell Achinelly's belongings in a jewelry store on Victoria Street.