You've already heard the story of how the Torres family began. You already know all about Victoria Torres. Though I highly doubt that you know about the little boy in the family. Gustavo Torres. You see, he lived a relatively normal life, so to speak. He grew up in Puerto Rica with his parents and two big sisters. His first few years of life consisted of him absolutely adoring Tori and not wanting to do anything without her. As he grew up, he started to do things on his own (thank goodness for that).
He remembers seeing Tori leave for England for some place called 'Hogwarts'. He wanted to go so bad. However, he wasn't allowed cause 'he wasn't like Victoria'. Which, caused the rebellious seven year old boy to leave the house to prove to them he was like his big sister. Unfortunately, this wasn't a normal night. It was a full moon. As the boy wandered around, he found himself face to face with a furry monster. This monster wasn't in it's right mind and attacked the poor boy, his screams the only thing that alerted the surrounding people of their presence. The beast ran once he heard the pounding of feet, leaving Gustavo to bleed to death.
Luckily, he was found by his parents, who (naturally) knew he was out of bed and were on the search for him when they heard his scream. His father, José, being a wizard, immediately took him to a wizarding hospital, having recognized the bite from his DAtDA class. Gustavo stayed at the unfamiliar hospital for a month, waiting for his first transformation. Of course his misfortune didn't stop there. As soon as he was discharged, he was sent to England to live with his aunt and uncle.
Naturally, Gustavo was ecstatic to be with his big sister again. However, that's when once again things started to go wrong. As soon as Gustavo entered his Uncle's house, all hell broke loose. Him and his wife would frequently being to beat Tori and Gustavo. Luckily for Tori, she went to school for the majority of the year. Which meant more bruises for Gustavo. The winter during Tori's fifth year, things changed drastically. It just was too much for Gustavo to handle and his locked magic rushed to his defense, killing his aunt and uncle in the process. Frightened, Tori and Gustavo (though more so the latter, while the former attempted to brave through it) went to the local orphanage.
Now he's just waiting for the fateful letter to Hogwarts, all the while fearing for his sister's safety.