Stock Footage - Final Piece

I would like to use some riot footage in my opening, similar to how the footage is used in the Dawn of the Dead opening credits; I feel that this would help provide unspoken exposition on the fall of society in my film's lore, helping to set the tone and plot of my film in a montage (so to speak).

I plan to simply search for some footage on YouTube and rerecord the footage on my camera. The intention is to film it in handheld to hopefully make it seem more authentic/as if it was recorded at the scene; the recording of the footage on my monitor might make the clips seem lower quality or grainy, however this only further adds to the idea of the footage being old or damaged given that it was shot before the outbreak.