Ahead of the February general elections, leaders of Nigeria's major political parties and their presidential candidates on Wednesday signed an undertaking to avoid actions that could promote violence during and after the polls.
At an event attended by former United Nations Secretary General, Kofi Anan, and former Secretary General of the Commonwealth, Emeka Anyaoku, seven presidential candidates including frontrunners, President Goodluck Jonathan and Muhammadu Buhari, openly spoke against violence and committed to a peaceful poll.

Source: http://ereporter.com.ng/index.php/political-news/item/2578-jonathan-buhari-other-presidential-candidates-sign-pact-rejecting-election-violence

This is a welcome development, as Nigerians lives and properties are far better than political office. Because is people that they will lead not ghost.