To Beat the Devil — Michael Haskins

With Mick Murphy recovering from near death, his black-ops friend Norm Burke assists him on his quest to kill Russian mobster Alexei, the man Murphy holds responsible for Tita's death. Almost close to Alexei, Murphy gets Alexei's journal from a Mexican drug lord and it leads him back to Key West where he must choose between his quest and savings the lives of innocent people caught up in a terrorist plot.