domain add/remove/reseller owner and other stuff informatio for authorities

Hi.

Local authorities are requesting me information on a certain domain which was removed from one of our WHM servers some time ago.
As far as I can see it was a domain configured by a reseller. I just know because of cPanel username used, since we use a certain syntax for our own enduser and resellers usernames, and this domain username does not match this syntax. Also because we have no information on it on our company accounting app.

So, the domain was not set up by us. That's all I know. Now I need to know which reseller did it. Since we have information on all resellers, problem will be solved

How can I check this on cPanel? This is a past information so I probably need to check some logs.

Any information on this issue will be appreciated.

Thank you.

Regards.