GROUP by Kevin R. Doyle, THE (The Group Series, Book 1)

Ron Green had made a mistake, but it wasn't one that millions of other guys hadn't made before him. And maybe he deserved some sort of punishment, like his wife leaving him or his kids hating his guts. But this? Being the main suspect in a single murder was bad enough, but at the same time knowing he was a potential victim of a serial killer was even worse. However, before Green could convince the cops of his innocence, he first had to convince them the serial killer existed, and now they...