Jean-Claude held his free hand out towards Jason, invitation and demand, and curled his other hand against Brant's back, scratching lightly through the young man's shirt. "I will not kill him. Jason is mine, to protect and to care for, and I will not harm him. It is why I sent him away when I fed earlier."
No one with any sort of psychic connection needed to be near when he'd fed upon the crowd, even leashed back. The kickback could have drained Jason, or forced his change.