As a newborn vampire, Diego provided better control and discipline than the rest of his army. He held responsibility with taking care of the lesser tamed newborns, and was very smart and careful with his actions. He had a liking to music, which drove him to steal from malls at night when he grew tired of his old CDs.
His loyalty to Riley was unwavering, but it was also what brought him to his end.
Not much is known about Diego before he became a vampire, but it is known that he had a goal: to leave his street life and go to college. He managed to stay out of trouble, but when his little brother didn't and died from it, Diego tried to avenge for him. That night, he was cornered by armed enemies until Riley came to his rescue, asking if he needed a new life. Then, he brought him to Victoria and she transformed him.
In the past eleven months, Diego acted as the most responsible member, always looking after his lesser tamed mates, even if they didn't want to be looked after. Part of his obedience came from the fact that Riley had been his only friend since he became a vampire and was very loyal to him.
The Short Second Life of Bree TannerEdit
- Main article: The Short Second Life of Bree Tanner
Diego became one of Bree's few companions (the other being "Freaky Fred") one week before they moved on to Forks and later became love interest. He was first introduced while hunting with Bree, Kevin, "Spider-Man". He lectured the others for being reckless while hunting, but warmed up to Bree because she was one of the "tamer" newborns in Victoria's army. Diego was seen kindly and was appreciated by Riley, and was therefore reluctant to deceive him in order to gain information about the true leader of the army (Victoria, though she is known as "her" by the newborns).
When Diego went to tell Riley about the truth about the sunlight, he disappeared. Bree later realized that Riley implied that he was dead when he returned alone; Victoria tortured and killed him, with the help of Riley, for knowing the secret. Bree was distraught when she realized this, and it was one of the reasons why she did not fight her fate at the hands of the Volturi.
He quickly formed a close bond with younger born, Bree Tanner, after they got to know each other better. Diego kissed Bree twice in the novel, and proved to her that the vampire traditions were not real; for instance, vampires don't burn in sunlight or get killed by stakes. Bree initially was cautious about him, just like everyone else, but warmed up to him when they went hunting together and realized that he was different and wasn't dangerous. Many fans believe that Bree fell in love with Diego over the course of The Short Second Life of Bree Tanner, while some believe that they were a bonded pair and had a simple innocent platonic, non-romantic relationship.
They actually formed a "B.F.F secret ninja club", with a secret handshake that Diego died too soon to complete.
- Main article: Riley
Riley gave Diego a chance at a new life after nearly getting killed by his enemies. After becoming a vampire, Diego held more responsibility over the army's actions than the other vampires and Riley grew very fond of him.
Diego trusted Riley with his life because he was his first friend in the vampire world, which became his fatal doom when he told Riley and Victoria about the sunlight's true effects on vampires. Riley was actually pained to watch him die.