Look deeper into every aspect of what happened, was he the only gunmen on the island when early reports suggest there were 2? Was there suspicious behaviour at the bombing location on the previous evening? Where his views entirely self originating or was he influenced in any way by people who could benefit? Was he a member of the secretive freemasonic organisation and what influence if any could it have on his idiology? Was he brainwashed? Considering the move by governments to demonise conspiracy theorists and the idea of homegrown terror, was it just coincidence this plays right into their hands? Does he even exist?
This may be the work of a lone gunman with radical views or he may have been encouraged in a certain ideological direction that benefited a specific agenda. Be open to all perspectives/interpretations and investigate every aspect of what happened to the fullest extent.
Department of homeland security encouraging people to "See something, say somthing" if they see suspicious behaviour, particularly that of the homegrown, white, right wing terrorist: http://www.youtube.com/watch?v=K7q3bWEvl7o