Discovering Who Installed A Module

This morning I noticed a module that is installed on a site that we have LOGman running on. I'm normally the person who installs things on this client ste so it's suspicious activity and I would like to know who installed it.

Where should I be looking in LOGman to find this kind of information? Should I be looking in 'Installer' or 'Modules'?

I've only been using Logman for a few months so an entry might not be anywhere in LOGman if it was done before I started using LOGman.

Thanks!

Joe