Royce King II
"There was this one royal family... The Kings, ironically enough..." Rosalie, on the Kings.
Royce King II was a human who lived during the Great Depression. He was engaged to Rosalie Hale for a short period of time, but gang-raped and beat her almost to death with a group of his friends.
Rosalie, after completeing her transformation into a vampire, returned to kill him and the friends that were there on her last night of being human. He was perceived as being out-spoken and arrogant, but Rosalie was attracted to his good looks and wealth.
When Rosalie turned up at the bank the Kings ran, Royce caught her eye. He began courting her and sent her bouquets of flowers; roses at first for her name, then violets as he thought they matched her eyes. Shortly after, he proposed to her, and she accepted, not realizing that he only loved her for her beauty. She and her parents were thrilled with this plan, and plans went ahead for a lavish wedding.
As Rosalie lay battered and dying in the street, Carlisle Cullen found her, alerted by the scent of her blood. To save her life, he bit her to transform her into a vampire. After discovering her immense, superhuman power, Rosalie reaped revenge on her attackers and brutally murdered Royce and his friends.
She saved Royce for last so that he would be driven mad with fear, stole a wedding dress for the occasion and went in search of her murderer and former fiancé. Knowing that Rosalie was coming for him, Royce locked himself in a windowless room with a thick, vault-like door, guarded by two men. Rosalie killed the guards and burst into the room, where she slowly tortured Royce before finally killing him, though made sure not to spill any of his blood as she wouldn't have been able to resist drinking it and wanted no part of him inside her.