Amnesty International's Nigeria expert Lucy Freeman on the tide of violence threatening stability of April polls. The short report entitled Loss of life, insecurity and impunity in the run up to Nigeria's elections highlights how hundreds of people have been killed in politically-motivated, communal and sectarian violence across Nigeria ahead of presidential and parliamentary polls. Authorities have failed to bring suspected perpetrators to justice, or to prevent further human rights abuses. Investigations are infrequent and often inadequate. Hardly anyone has been convicted for the killings.