Authorities in Egypt have released a sketch of the suspected bomber in the deadly January one attack on a Coptic church in Alexandria. Egyptian newspapers published the sketch today which shows a man who appears to be in his mid-20's. The image has been created based on evidence found at the blast site, including parts of the alleged bomber's head. Twenty-one worshippers were killed in the bombing and two more victims died later from injuries. No one has claimed responsibility for the bombing but Egyptian authorities suspect al-Qaida is behind the attack. Meanwhile, security is tight in Egypt as Coptic Christians prepare for their traditional Christmas Eve services on Thursday.