Suddenly, the clouds grumbled in anger. Darkness filled the atmosphere. Demarion had swooped in, ripped the Duke away from Aakifahlynn, and pelted him across the lot.
He then disappeared and reappeared in front of the Duke across the lot, picked him up, and held him steady. At the same time, he shoved his sharp, elongated, claw-like hands into the Duke's chest and tore out his heart.
Demarion moved with the speed of lightning; he did all this before Aakifahkynn could utter her next line of seduction or make another sound of pleasure or before the Duke could even process what was happening.
Demarion squeezed the Duke's heart and crushed it; only tissue and clumps of clot-like blood caressed the dirt floor.
Demarion was not about to watch her flirt and seduce this man. Goddess, how far was she willing to go? Goddess, damn it, he could not bare the thought.
So yes, he did it. He killed him for touching his Empress.