Tina

“Just take the weapon you hold in your hand and drive it through his heart," Valentine's voice was soft. "One simple motion. Nothing you haven't done before."
Jace met his father's stare with a level gaze. "I saw Agramon," he said. "It had your face."
"You saw Agramon?" The Soul-Sword glittered as Valentine moved toward his son. "And you lived?"
"I killed it."
"You killed the Demon of Fear, but you won't kill a single vampire, not even at my order?"
Jace stood watching Valentine without expression. "He's a vampire, that's true," he said. "But his name is Simon.”
― Cassandra Clare, City of Ashes