The Atonement Murders by Jenifer Ruff

This is your atonement.

When detectives find the same message at the staged scenes of four seemingly unrelated homicides, FBI Special Agent Victoria Heslin is determined to uncover the connection between them.

The deaths are scattered across the East Coast. The victims are in their late twenties: an All-Star NBA player, an investment banker, a dental hygienist, and a bartender with a serious drinking problem.

Who is making them pay? What have they done? And who might be next?

Spending weeks away from home, Agent Victoria delves into the victims’ pasts, unraveling the strange mystery that links them together. As the killer’s motive becomes clear, Victoria is in a race to the finish that she must not lose.

A standalone thriller.