Dive of Truth, a thriller by Bruce Allsman
After being paralyzed from the waist down in a tandem jump accident, Jackson Tagger, chief skydiving instructor, is furious when he learns from Dean Cameron, his billionaire friend, that their so-called accident was no accident at all. Someone wants either him or Dean dead. But Dean says that, Cory Sanders, the best private investigator he knows and hired, had investigated and ruled out the possibility of anyone wanting to kill Dean. So, the intended victim must be him. To uncover the truth, he hires Cory to investigate. When Cory reveals the findings to him, Jackson knows exactly what to do and contacts Dean immediately for help. With Dean extensive resources in the aviation industry, they hatch an elaborate daring plan to expose the culprit.