Circle-A Killings, Paperback/Sean Heary

Returning from Moscow, Lorenzo Rossi finds himself forced to quit his job. And to make matters worse, his fiancee, CIA Agent calls off their wedding. Just as Rossi is settling into his new life, the CIA persuades him to rejoin Cathy in catching the killer of three American billionaires. The two devise a plan to befriend the CIA's main suspect.