story
Changing the facts
Similarly loads of people must have seen the CHL incident. I asked the lady who runs the fruit stall under the arches what had happened and she claimed ignorance. Clearly she must have seen it.
She may not have seen the details, only that something was happening.
She may have seen what was happening but not wanted to leave her pitch and get close up to what was going on.
She may have seen plenty but not have wanted to get into a conversation with someone she didn't know.
She may have been away for a pee, or on the phone, or in the back.
She may not have realised the seriousness of the situation and not paid proper attention.