D.J. Donaldson is a retired professor of anatomy and neurobiology. His entire academic career was spent at the University of Tennessee, Health Science Center, where he published dozens of papers on wound-healing and taught microscopic anatomy to thousands of medical and dental students. He is also the author of seven published forensic mysteries and five medical thrillers. He lives in Memphis, Tennessee, with his wife and two West Highland terriers. In the spring of most years, he simply cannot stop buying new flowers and other plants for the couple's prized backyard garden.