Nigeria: death threat Boko Haram killed an aid worker and threatened to kill three other hostages, including the Christian schoolgirl Leah Sharibu, in September. Christian Solidarity Worldwide / World Watch Monitor Leah Sharibu Saifura Hussaini Ahmed Khorsa, 25, who worked as a midwife with the International Committee of the Red Cross, had been abducted on 1 March, alongside two other health workers. subscribe now Join today to gain access to the rest of this article and many others. more info login If you are already a subscriber, log in to continue. log in access code If you have an access code, enter it here: Go free trial Get free access for 14 days: Sign up Click here to find out how we take care of your personal data.