Those behind the shootings can be related to trend that is starting to show up. People especially the disillusioned and uneducated are beginning to act out various parts from the DaVinci and Angel and Demons because for one they are pagans and know that science has beaten their creation and god myths and they cannot except a world in which there god is not the forefront of all knowledge and two they thinking like pagans once again think that if they act like the various characters from the movies, for example Silas, and commit some great act of murder against those who value truth not as seen by them but truth as discovered through science and space exploration that they will be remembered as a great martyr before their cult and god while the rest of the world will condemn then as being nothing more than a wasted shell of a human life.

People may think that the DaVinci Code and the books by Dan Brown are fiction. The war between science and religion has been waging ever since the apple fell and hit Leonardo on the head and changed the pagan god into nothing more than a pile of well...nothing.