Deep Within by Douglas Dell

After a young couple is murdered in the Brown Springs backwoods, former journalist Robert Winchester returns to Florida, this time to dig a little deeper. When he stirs things up it begins to stink and the risks escalate. The trail runs hotter by the minute as one set of circumstances throws Robert back together with old friends and into the sights of one of the largest, most violent drug syndicates in the US.
This is the second book in the Robert Winchester Novel Series.