Fool's Flight — Warren Murphy

Digger is an insurance investigator who drinks, chases women, asks smartass questions and gets help from his part-time hooker girlfriend. A humorous crime adventure series by the author of The Destroyer. In FOOL'S FLIGHT, Digger investigates a plane crash that leaves forty pilgrims dead, each of whom has an insurance policy payable to the Reverend whose religious retreat they were traveling to attend.