"Fast Company" featured Rap Genius co-founder Mahbod Moghadam in its list of the Most Creative People of 2013. By early 2014, however, Moghadam had reduced his involvement in Genius to a part-time role, due to complications from his surgery for meningioma, a benign brain tumor. In May 2014, Moghadam resigned after annotating the manifesto of Isla Vista spree killer Elliot Rodger in ways labeled as inappropriate.