The author was a professor for 54 years. In that time he gave a lot of thought to people here and there he would like to have been able to murder with impunity. Mystery writing is a fun form of sublimation.
In the past, he published a few college texts on computers until he grew bored, wrote and writes a number of essays which entertained his colleagues and friends. The mystery stories were concocted for his sister Audrey, who loves the genre.
Writings work, but it is fun.