I don't know where the urges came from. The kittens and puppies were first. There was the boy up the street and later the prostitutes.
I turned my "special talents" into a career. The CIA was among those who utilized my services.
Soon after we encountered the others, one of them "got lost" and found it's way into my care. It's hard shell was no match for my tools.
We didn't know that they are telepathic. Dying, it felt my passions and spread them through it's species.
Unfamiliar with strong emotion, they could not avoid what they did to us.