"Emotions help fuel magic. Anger, hatred, lust, joy; they all make it stronger. Sex is used to build the emotions up and direct the energy at the time of the climax." He answered, frowning at her interest in the subject. "The amount of energy needed to cause hearts to explode, particularly over a long distance, is immense. In the Chicago case, an orgy was held and the energy used to fuel the spell."<br/><br/>Gabriel pointed next to the photos, "I don't think that method was used here as the force emitted was smaller. In the Chicago case, the heart exploded out and essentially painted the room with viscera. Here, the fountain is smaller and the wound more precise. This took a lot of skill, more than most warlocks have." He bit his lip thoughtfully, the gesture surprisingly cutesy on an otherwise serious face.<br/><br/>There was little chance that a warlock pulled this off alone. Gabriel had been very diligent in capturing and executing warlocks in his territory, so there shouldn't be anyone eith the skill required to do this. They likely just came to the area and had help and connections to do this.