How can I obtain the username when using a FileSystemWatcher

I am using a FileSystemWatcher to monitor a share folder on network. Three PC will share this folder and watch who accessing what.
I could read user name by using GetAccessControl function for 'Create function'

protected void mywatcher_created(object sender,FileSystemEventArgs  e)
{
    string user_name = System.IO.File.GetAccessControl(e.FullPath).GetOwner(typeof(System.Security.Principal.NTAccount)).ToString();
    
    DateTime current = DateTime.Now;
    lstCreate.Items.Add(e.FullPath.ToString());
    lstCreate.Items[cCount].SubItems.Add(current.ToShortDateString());
    lstCreate.Items[cCount].SubItems.Add(current.ToShortTimeString());
    lstCreate.Items[cCount].SubItems.Add(user_name.ToString());
    cCount += 1;
}

If I want to read user name for deleted , renamed or changed file , and GetAssessControl Function couldn't be used for those. I got error of  'filepath couln't find'.
So how can I read the user name of share folder.
I wrote deleted file by this function ,

 protected void mywatcher_deleted(object sender, FileSystemEventArgs e)
        {
               
                string user_name = System.IO.File.GetAccessControl(e.FullPath).GetOwner(typeof(System.Security.Principal.NTAccount)).ToString();
            
                CheckForIllegalCrossThreadCalls = false;
                DateTime current = DateTime.Now;               
                lstDelete.Items.Add(e.FullPath.ToString());
                lstDelete.Items[dCount].SubItems.Add(current.ToShortDateString());
                lstDelete.Items[dCount].SubItems.Add(current.ToShortTimeString());
                lstDelete.Items[dCount].SubItems.Add(user_name.ToString());

                dCount += 1;            
        }