This document was presented to the press by the Nigerian Army. It compares the bump on the head of the man killed in Konduga (left) with that on the head of the man who regularly appears in Boko Haram videos, known as Shekau (right).

On Thursday, the Nigerian army finally organised a press conference to announce the results of its investigation. According to army officials, the original photo is that of an Islamist chief named Bashir Mohammed who had been “acting or posing as the deceased Abubakar Shekau”. They said Mohammed, who also went by several other names, had indeed been killed in fighting in Konduga.To prove that this was the man who had recently appeared as Shekau in several videos, military authorities pointed out that the man in the blue pants had a bump on his forehead, a feature that is also noticeable in videos of Shekau.