Hey man, I'm not trying to rain on your parade or anything but I think maybe you should dial the wild assumptions back a little bit....

Firstly, there is not much you can really tell about the direction of gunshots based on audio recorded on a phone, most (if not all) phones only record in mono so basically the only thing you are going to be able to hear is a change in levels, not direction (Technically stereo is kind of an illusion of space anyway but we won't go into that). Secondly she is (naturally) moving her phone around as she records which mean the direction of the mic is constantly changing and therefore the levels will not be consistent. Third, if you are referring to the echoes you can hear I think that could very well be ruled out due to the fact that you are talking about a city made almost entirely of concrete, glass and steel...You are gonna hear echoes. It's the equivalent of recording yourself clapping your hands in a cave and trying to use the echoes as evidence of invisible people.

Lastly, I would REALLY dial back the insults directed towards a guy who many would consider a hero and maybe do a little more research before you decide he doesn't exist and going Hell for leather on the attack. Like maybe check out social media for instance...Now I'm not gonna do this, because I don't think it would be very nice for either of you, but imagine if somebody shared this to him on Facebook...Would you have the guts to tell him to his face that he doesn't exist? Here's his page if you wanna check it out..Maybe ask him some questions..
https://www.facebook.com/mike.cronk.90?hc_ref=ARTqblZf0WmA7r5NTBNV4XPpfP-wIhi5qRfIzKGXrmYBPWOaH7Qq7eclVl41g1ncR0w&fref=nf

Honestly I'm not trying to be rude and I understand that, maybe you think what you're doing is right, perhaps you're just going the wrong way about it. There is nothing wrong with asking questions by any stretch but this just seems like an incredibly insensitive way of going about it..