Just Enough Light To Kill

Description for JUST ENOUGH LIGHT TO KILL by A E Maxwell:

In sunny southern California living is easy. And in Mexico, when you mess with the wrong folks, dying is easy too--as sexy, savvy RI. Fiddler finds out when he heads down to Tijuana. When a U.S. Customs agent who saved his life is killed, Fiddler heads south of the border with some unpleasant questions for some decidedly unpleasant people. Suddenly, he's at the top of the Tijuana hit parade, a target of smugglers, banditos, and the shadowy El Cojo, a blast from Fiddler's past. The trail of greed and deception leads him to a bank in Newport Beach and his voluptuous ex-wife, Fiora--and Fiddler's going to need her wiles to outfox El Cojo, who's marked him for death and won't let borders stand in his way.

This is #4 in A Fiddler And Fiora Mystery.