Shoot Him If He Runs by Stuart Woods

Stone is invited to the White House for a dinner. And he is requested to have a bag ready with clothes for a warmer climate. The CIA is looking for a man believed to still be alive and living in the Caribbean on St. Marks, one of the islands. With two friends and another agent, Holly Barker, they find themselves on a "vacation" while trying to ferret out the wanted man. Lots of twists and turns, secrets and devious plots, Woods writes an exciting thriller.