It wasn't killing if they were already dead. 'Genny couldn't bring them back to life, there were no signs of higher thought processes (or general life functions), and Stealth said they showed no evidence of feeling pain, which she had discovered in ways Kathy was happier not knowing. That put them at the same level as the skeletons at Cyseal--lower, actually, because the skeletons had at least been smart enough to use weapons and basic tactics.

No, all these thngs did was shamble, kill, and eat, endangering people that were still alive and keeping her in LA when she'd really rather be back home on the island. Also, they were ruining her last few minutes of prom, dammit. (She still couldn't bring herself to kill the few child zombies she'd seen. That was still just a step too far.)

The zombies' clothing and hair caught fire readily, save for the one in the middle whose shirt was still sodden with blood. The flames themselves didn't seem to deter the zombies, though; it wasn't hot enough to start melting skin and they lacked the pain receptors to care. "Try electricity!" Kathy called. "It won't hurt them but it might disrupt the body's signals!"