These pictures tell it all #bring backourgirls

Protesters in a "million-woman march" on Wednesday, April 30, in the Nigerian capital, Abuja.

Obiageli Ezekwesili, former Nigerian education minister and vice president of the World Bank's Africa division, leads a march of women and mothers of the kidnapped girls in Abuja on April 30.

Four female students who were abducted by gunmen and reunited with their families walk in Chibok on April 21. "A total of 230 parents registered the names of their daughters who were missing on the day of the kidnap," said Asabe Kwambura, principal of the Government Girls Secondary School. "From my records, 43 girls have so far escaped on their own from their kidnappers. We still have 187 girls missing."

Borno state governor Kashim Shettima, center, visits the Chibok school on April 21.