We can only hope this is a trend. Too many individuals think family and money can buy a "not guilty" verdict. Sorry...doesn't work that way any longer.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .