"Don't ask me when I lost my soul. It's not that I wouldn't tell you, it's just that I honestly can't remember if I ever had one. It's been so long since I've had a taste of humanity, I can't remember much. I only remember things that are worth remembering.
When I stopped caring? Oh, that questions easy. It's simple really, I never started.
Becoming a "monster"- as you so kindly put it- didn't change me. It didn't make me suddenly evil, an outcast, or a killer. I guess inside I already knew I wasn't human. I didn't have to be a vampire to know that. Not all five year olds dreamt about eating the next door neighbor's daughter.
The thrill of killing somebody for the first time. My God how wonderful it was. I can barely put such glorious feelings into words, but since you will never experience this I might as well share.
Those last bits of fragile humanity slipping away as I sucked greedily at their throat; never getting enough. The warmth of their blood sliding down my parched throat like a river; the catastrophic taste. The all new feeling of euphoria taking over. It was invigorating. I held that kind of power, the power that belonged to the Gods. To take a life!
Yes, I see that look of disgust on your face. You and I both know my story is only going to get more gruesome. I know you didn't drag me down here just to hear me brood. So where do I start, officer? Should I rant some more or shall I answer some more pointless questions. I honestly don't care. I have forever."