You should take into consideration when selecting unsubscribe, the only alternative offered in your Facebook profile is the disable account, something that guarantees that everything is completely eliminated, so it may be that the images, remarks and private conversations are saved, although currently not be accessible to them.
How Can I Delete My Facebook Account
If you wish to erase your single account you have to visit the following link and verify:
http://www.facebook.com/help/contact.php?show_form=delete_account
Note: As soon as confirm not be able to recover your data and whatever to do with the Expense, currently not you can use features it e-mail, which gave low, you would have utilized a new account hotmail, gmail, etc.
Delete request from sent by mistake
To erase a request mistakenly sent to a person (e.g. ask for friendship) in the leading menu go to "Setup", then "Privacy settings".
Then write the complete name of the person in the field "Block individual".
Then look it up and lock it. So not your friendship demand, will be because obstructing someone removes any link with it. If you desire this person to discover you or have contact with her, you go back to the 'blocked list' and remove it by pressing Erase (but already not your application will appear to him because it was formerly blocked).
This does not work for sent out messages, since they are all stored in the Inbox of the person.
Thus the article How Can I Delete My Facebook Account from us, hopefully useful thank you.