Assuming Apache mod_rewrite module is enabled:
sudo a2enmod rewrite
Create the needed website directories:
mkdir /var/www/brianwilliams.pro
mkdir /var/www/allaboutyoushelby.com
Configure Apache:
sudo vi /etc/apache2/sites-available/brianwilliams.pro
<VirtualHost *:80>
DocumentRoot /var/www/brianwilliams.pro
ServerName www.brianwilliams.pro
ServerAlias brianwilliams.pro
</VirtualHost>
sudo vi /etc/apache2/sites-available/allaboutyoushelby.com
<VirtualHost *:80>
DocumentRoot /var/www/allaboutyoushelby.com
ServerName www.allaboutyoushelby.com
ServerAlias allaboutyoushelby.com
</VirtualHost>
Enable the sites in Apache:
cd /etc/apache2/sites-available
sudo a2ensite brianwilliams.pro
sudo a2ensite allaboutyoushelby.com
Restart Apache:
sudo service apache2 restart