- Go to Finder and select Finder » Secure Empty Trash.
- If this operation gets stuck, open the Activity Monitor utility and force quit the Locum process.
Enter your admin password when requested. - Go back to Finder and select Finder » Empty Trash.
[crarko adds: I found this thread in the MacOSXHints forums where the Locum process is discussed. It references a good source for finding out more information about this process. By the way, the word 'Locum' means 'place-holder' or perhaps 'temporary proxy' is more applicable in this case. Apparently it fills in for the Finder in the background while emptying the Trash. It also can consume quite a bit of memory while doing so with a large number of files.]

