Mr. Mercedes - By stephen king

The stolen Mercedes emerges from the pre-dawn fog and plows through a crowd of men and women on line for a job fair in a distressed American city. Then the lone driver backs up, charges again, and speeds off, leaving eight dead and more wounded. The case goes unsolved and ex-cop Bill Hodges is out of hope when he gets a letter from a man who loved the feel of death under the Mercedes’s wheels…
Brady Hartsfield wants that rush again, but this time he’s going big, with an attack that would take down thousands—unless Hodges and two new unusual allies he picks up along the way can throw a wrench in Hartsfield’s diabolical plans. Stephen King takes off on a “nerve-shredding, pulse-pounding race against time” (Fort Worth Star-Telegram) with this acclaimed #1 bestselling thriller.