Zara Oumar is now living safely in Cameroon after escaping from Boko Haram, which held her hostage for four years in Nigeria's neighbouring Sambisa forest.
The killing of Ifeanyi Okereke by one of the security details attached to the office of the Speaker of the House of Representatives, Femi Gbajabiamila, has sparked outrage on social media as Nigerians condemned the act and called for justice over the incident.
