How do I find out which MOD or admin deleted a user? Is there a sql command for that in the admin panel? I'm running ubb.threads 6.4

Any help would be greatly appreciated!
OH and I didn't have the Admin Log set yet!

Usually, there's no way to get this info without the admin log.
If you're using the mysql binary log or the mysql log files, you'll might be able to determine the execution time of the query, but it won't help you to find the the user, who deleted the user.