Nigeria : Amnesty International accused Ibrahim of extra - judicial killings . He was arrested after a months - long police operation . Police are now trying to confirm his true identity . Boko Ibrahim has carried out multiple attacks in Nigeria recently .
NEW : Amnesty International accuses police of extra-judicial killings . He was captured after a months-long surveillance operation . Police are now trying to confirm his true identity . Boko Haram has carried out multiple attacks in Nigeria recently .