So I logged into someones account

I was checking out my emails and I typed in one of my emails and when I logged into it, I remembered that it was my friends account that was linked to my email. He had sent a message to the account 8 months ago.
https://m.imgur.com/a/evdSHss
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Could anyone help me find him? Or if the account is yours then tell me what it has in the inventory and I will gladly give it back to you.
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I gave back 2 accounts who contacted me on instagram, they gave me all info and it was theirs, they were my friends from 2015-2016, and it really brings tears of joy because of how we got together back again.
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If any admins could help to see what email that account on the screenshot is linked to, that would be amazing. I would send an email to them informing that I can give the access to their account back.
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And the Discord username didnt work, unfortunately.