They fled a Boko Haram massacre. Now, after years in refugee camps, families return to rebuild their lives

It is a sight Ya Lewa Aji says she can never forget: a baby strapped to her mother's back, shot dead while the mother lay lifeless on the floor.

They fled a Boko Haram massacre. Now, after years in refugee camps, families return to rebuild their lives
It is a sight Ya Lewa Aji says she can never forget: a baby strapped to her mother's back, shot dead while the mother lay lifeless on the floor.