photo-link Why do they have a JOHN-the-BAPTIST BEHEADING PAINTING on the WALL @ the GLENDALE LIBRARY ?

why do they have a JOHN-the-BAPTIST BEHEADING PAINTING on the WALL @ the GLENDALE LIBRARY ? 

http://just-my-pictures-glory-2-god.blogspot.com/2015/02/why-do-they-jave-john-baptist-beheading.html