 Harry then kills her on the sacrificial altar, triggering the Red Court's powerful bloodline curse against the Red Court themselves and wiping out every Red Court vampire older than Susan.The majority of Red Court vampire victims in St. Giles became fully human, but having had drastically extended lifespans, most of them immediately died.In any case, even if a few young Red Court vampires remain they are too young, weak, and inexperienced to hold the Red Court's position in the monster hierarchy leaving a void eager to be filled by others.