Entourage recipient - how to delete?

I have this snippet of code… which goes through the list of recipients of an email, looking for ‘search_for’ in the display name… if true, I want to delete that recipient… but try as I might, I can’t seem to figure out the syntax of the delete command.
delete‚v : Delete an element from an object
delete specifier : the element to delete

Can someone point me in the right direction? Thanks in advance. cheers Neil

tell application “Microsoft Entourage”

if the class of the front window ≠ draft window then
-- deleted code telling user to have email open...
end if

set theMsg to the front window	

set theRecipients to every recipient of theMsg

repeat with theRecipient in theRecipients
	set theAddress to the address of theRecipient
	set theName to the display name of theAddress as Unicode text
	if theName contains " search_for " then
        delete theRecipient
	end if
end repeat

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