>it's truly amazing that they've found 3 separate photos of the same person in the same spot at the blast //
I looked at a few flickr images and identified about 6 people who were in 2 or 3 images at the location of the Marathon Place bomb¹ without too much effort. So I don't find that particularly amazing.
>If you're standing in the crowd most people will take a backpack off & put it at their feet? //
Based on this limit section of the marathon watchers that "most" appears to be patently false. I only saw one guy standing in that area with a bag between his legs but at least 20 other backpacks (or similar). This surprised me, I hold my backpack on my front in any crowd to try to avoid being robbed.
¹ - you can use the video footage to "triangulate" the location, the video line-of-sight passes through a tree from the centre of the finish line, you can see these details on Google Maps. Around the area between the South African and Norwegian flags.
I looked at a few flickr images and identified about 6 people who were in 2 or 3 images at the location of the Marathon Place bomb¹ without too much effort. So I don't find that particularly amazing.
>If you're standing in the crowd most people will take a backpack off & put it at their feet? //
Based on this limit section of the marathon watchers that "most" appears to be patently false. I only saw one guy standing in that area with a bag between his legs but at least 20 other backpacks (or similar). This surprised me, I hold my backpack on my front in any crowd to try to avoid being robbed.
¹ - you can use the video footage to "triangulate" the location, the video line-of-sight passes through a tree from the centre of the finish line, you can see these details on Google Maps. Around the area between the South African and Norwegian flags.