All site templates are licensed under the Creative Commons Attribution 3.0 License, he didn't include BlackTie.co credit

Both are using Bootstrap with what appears to be a theme similar to the Bootstrap's own site. Looks like less of a case of one copying the other, and more of both copying the default bootstrap site.

They both use the same 'Flatty' free bootstrap theme http://www.blacktie.co/demo/flatty/

They don't both use it. Liberio made their theme first, and "Black Tie Co" ripped it off and called it Flatty and had the balls to put it under a CC license.

Look at the CSS, it's ridiculous.

that'd be it then!

because its yellow? and has a hero?

The similarities defo end there