Step 2: Be vicious and kill the link to the Shield
There can be no confusion as to if he has or has not turned. Roman Reigns can NOT be perceived as any kind of tweener.
Steve Austin has often spoken about turning heel, needing to team with Triple H and having to almost literally “kill” people with chairs, when he turned heel in 2001, in order to get the audience to recognise him as a full-fledged heel act.
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If the video above doesn’t get you in the mood for a Reigns’ turn, nothing will. The Reigns turn would also present the perfect chance for Reigns to ditch the link to the Shield by ditching the Shield gear.
Part of the reason he is booed is because fans think it is unfair that Reigns was allowed to be the main beneficiary of the group, with him keeping both the gear and the music.