In this photo taken Tuesday, Oct. 29, 2013, Abubakar Shariff Ahmed, an influential member of a controversial mosque where two previous mosque leaders were killed under mysterious circumstances, sits in his office in Mombasa, Kenya. Writing in Arabic on islamist flag reads “There is no God but God and Muhammed is his messenger”. (AP Photo/Jason Straziuso) by Jason StraziusoAssociated Press Writer MOMBASA, Kenya (AP) — In August 2012, a leader of a Kenyan mosque that has attracted extremist followers was shot dead as he drove through the streets of Mombasa. Fourteen months later, another leader of the same mosque met the same fate. There have been no arrests in either case. Abubakar Shariff Ahmed, an Islamic community leader associated with the same mosque, is certain that he will also be killed. And he believes — as do many others — that the police haven’t solved the two high-profile killings because they are the ones who carried them out. Riots broke out in Mombasa after Aboud Rogo was killed in August 2012 and after Sheik Ibrahim Ismael was killed in October, and tensions remain high in this shabby seaside city ringed by high-end resorts that sit on white-sand beaches.