Mark De Castrique

When his wife died of cancer, Rusty quit the Secret Service to repurpose his life. He joins a private protection company in Washington, DC, and is assigned to guard Paul Luguire, a Federal Reserve executive and chief liaison with the US Treasury. Mullins and Luguire form a strong friendship. So when a police detective calls in the middle of the night with word of Luguire's suicide, Mullins doesn't buy it.