Dubois considered this. On the one hand, he was loathe to let a genuine specimen slip from out of his fingers, but on the other hand, most if not all of the vampire and shifter killings had been completed by people outside of the 'family,' those distraught individuals who had fallen into the doctrine of the church of the Holy Sun, but were not really stable enough to be introduced to the leadership. In Dubois mind, Marie was one of those. She was overly connected to her sister. Perhaps allowing her to kill this particular vampire would thoroughly cement her loyalty to the group.
The pastor gave a slow not and gestured for his men to pull back, which they did immediately. "Alright, darlin, we'll pull this monster in your hands, let them be the tools of the Lord's divine justice." The two men began to walk back towards the man, "But," Dubois added, "When you're done with him, I want his fangs, do you understand?"