This has developed into a working problmatique on What are the conditions in Nigeria that have allowed Boko Haram to establish itself and prosper?
To do that effectively, you'll need to research the background and delineate the evolution of the problem in northern Nigeria. You should go back at least to the '80s and the Maitatsine, and follow the pattern of events through to the emergence of Ahl-Sunna wal Jamma in '95 and then the rise of Boko Haram. You should be able to collect plenty of material to adequately describe the failure of the Nigerian state to address core issues of resentment in the Muslim north over a period of decades in the face of a clearly evolving threat.