footage was captured by Ahmed Samir Assem, a 26-year-old photojournalist, on Monday, as he took photos outside the Republican Guard building in Cairo.
While grainy and unclear, it is still possible to watch the Egyptian soldier firing his gun, and then finally aiming and shooting at Assem, just as the footage ends.
Some believe that the Republican Guard building in Cairo is where ousted president Mohamed Morsi is being held, which is why Assem was on the scene.
However, he ended up being one of at least 51 people killed when security forces opened fire on a large crowd grouped outside the building, apparently some of whom were knelt for prayers.
Assem was a
freelance photographer, working for Egypt's Al-Horia Wa Al-Adala newspaper.
According to Ahmed Abu Zeid, the culture editor of Assem's newspaper, "At around 6am, a man came into the media centre with a camera covered in blood and told us that one of our colleagues had been injured."
"Around an hour later, I received news that Ahmed had been shot by a sniper in the forehead while filming or taking pictures on top of the buildings around the incident."
"Ahmed’s camera was the only one which filmed the entire incident from the first moment."
"He had started filming from the beginning of the prayers so he captured the very beginnings and in the video, you can see tens of victims. Ahmed’s camera will remain a piece of evidence in the violations that have been committed," he added.
The Egyptian military
are claiming they opened fire because a ‘terrorist group’ attacked in an attempt to storm the building.