well it's possible to change outfits. however, even if he did wax/shave his eyebrows for the hit... they would not grow back to absolute bushes in 4 days. also, with that level of bushy eyebrows he'd have a 5 o clock shadow even in the cctv footage with the guy wearing a black jacket and grey backpack. take a look at his stubble in the op picture and compare it with his eyebrows. also, the general facial structure of his brow doesn't look the same either.
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