Boko Haram has executed Hauwa Leman, an aide worker with the International Committee of the Red Cross reports TheCable .
Leman was abducted in March by a faction of Boko Haram, the Islamic State West African Province, along with two other aide workers , Saifura Khorsa , who was killed on September 16 and Alice Loksha , a nurse working for the United Nations Children and Education Fund .
The killing of Leman comes after the expiration of the deadline given to the Federal Government by the terrorist organisation .
Leah Sharibu , who was one of the students abducted from a Dapchi school in February is still being held by the group .
