18 Chibok parents have now died since the girls were abducted.
The military has launched a probe into the shooting.
The unfortunate incident took place during a church service on Sunday.
Nigerian blogger and journalist, Rotimi Akinola, has written a song inspired by Boko Haram's abduction of over 250 school girls from Chibok, Borno State, and the state of insecurity in Nigeria.
By Ishaan Tharoor It's been three weeks, and hundreds of pupils from Chibok Government Secondary Girls School in Nigeria are still missing, kidnapped by Nigerian terror group Boko Haram. Their plight has sparked protests and global outrage, including a now viral Twitter hashtag, #BringBackOurGirls. As the girls remain hidden by their captors, fears for their health … Continue reading #BringBackOurGirls: 8 questions you want answered about Nigeria’s missing #ChibokGirls