Garga tells UNICEF that the children lived in horrible conditions that included beatings.

CNN: Kids' lives are nightmares in unstable nations, UNICEF reports

Garga was shot in the back during the attack, UNICEF said.

CNN: Kids' lives are nightmares in unstable nations, UNICEF reports

Souleimane Garga, in Paoua, recounts to UNICEF how bandits broke into his home nearly two years ago and kidnapped his wife, newborn baby and two other children -- Harouna and Beldo -- after killing older family members, including an uncle and a grandfather.

CNN: Kids' lives are nightmares in unstable nations, UNICEF reports