The Monterey Peninsula is rocked when a killer begins to leave roadside crosses beside local highways. Kathryn Dance, the California Bureau of Investigation's foremost kinesics expert, and Deputy Michael O'Neil follow a lead to Travis Brigham, a trou

"Is it violence if it's virtual? The outspoken women targeted by the increasingly cruel Internet trolls and bullies would probably say so. For some of them, the torrents of bile and vicious threats prove too much. They begin to silence themselves in a series of high-profile suicides. Or do they? Tony Hill isn't convinced. But he's the only one. Former cop Carol Jordan is too busy messing up her life to care. Until she gets an unexpected second chance....

Two true-crime thrillers include Murder Thy Neighbor, depicting a man's violent retaliation against a local who would protect property values; and Murder IRL' in which an isolated girl's social-media war upends the target of her misguided affections.