Related:
Go to the part where illary is propped up on the concrete post.
Watch the lady next to illary in front of the lady in blue.
Right before grabbing illary under the armpit, she throws something out of her right hand .
https://www.youtube.com/watch?v=q5mYx5oCxEg
Is that right before the ‘metal object’ lands near illary’s foot?
Watch the second video on this page. - it is much easier to see the metal object fall.