Zombie Cop - The Enoch Wars, Book 1. The Enoch Wars, #3

"The funniest zombie book ever!""The blood was still warm and there was meat and what looked like veins between his teeth - hanging out like dental floss."Nobody knew where the still-living decapitated head came from. But when the head bites Police Chief Rawger, he becomes a zombie with an insatiable appetite for human flesh, revenge, and power. But, unlike Hollywood-depicted zombies, he can think, speak, and strategize.
He's also deranged, sexually perverted, and takes absolute pleasure in his evil acts. As the zombie cop feasts on his family, neighbors, and out-of-town visitors, the only one who can stop him is Azriel Creed - a 16-year-old bullied boy who becomes nearly paralyzed with pain whenever he gets angry or even thinks of violence. While the boy struggles against his debilitating condition to save his family and friends, he's forced to confront the growing zombie horde using dark powers locked inside him that are potentially even more evil than the zombies he battles...