Saltwood

A former Russian assassin using the alias Nick Deveraux has become a mysterious American hero but is kept under wraps following his spectacular capture. The FBI releases him after two years, right into the hands of the Russian mob. He is coerced to complete his former assignment - kill the Senate's last moderate conservative, Harriet Gayfeather of Kansas. He finds himself caught between the twin grindstones of oil money and religious power and becomes oddly aligned with both the senator's deputy and a woman who has made herself regionally famous by promising to kill an unidentified person in Kansas. Saltwood is the second book in the Dog of the Afterworld series.