Silly question, but I'm assuming this is footage around 7:30pm onwards. It looks to be broad daylight. It gets dark around 6pm in Melbourne these days. Or are these areas where footage was taken lit up with streetlights.
Also find it interesting that two separate shots have been taken of the same Asian guy wearing the black hoodie with a wide orange stripe across it. One image looks to come up as a yellow stripe. At one point he has his hoodie over his cap and in the other shot its off.
Hope they all help the investigators and clear there name by contacting police/offer some sort of assistance.
that looks nothing like broad daylight. it is quite obvious it is dark and the lighting you see is from street lights etc that surround the bridge... look to the right of the pictures, if it was broad daylight all that would be lit up, but it is dark.