Fabricio Werdum Says Khabib 'Will Kill' Conor McGregor

[[tmz:video id="0_2ljpxwu1"]] Khabib Nurmagomedov is going to MURDER Conor McGregor when they face off at UFC 229 in October ... this according to former UFC heavyweight champ Fabricio Werdum. The 41-year-old legend was at LAX when we asked to…