One of the most unexpected treats of Gone Girl was Tyler Perry's performance as wife-killer lawyer Tanner Bolt. And one of the most unexpected moments of that character is that in the aftermath, with Nick desperate to find a way to reveal what Amy really did, he laughs the whole thing off and leaves the "the most f\ck£d up people" he's ever met to live their woefully dysfunctional marriage (and that is putting it lightly). The thing is, that's very much in his character, with a similar outlook to the previously discussed press approach. Throughout the film there's an underlying clash between him and Nick over what should be said; the suspect wants to tell the truth, while his lawyer wants to present things in a way skewed towards gaining him his freedom. Tanner doesn't give a toss about whether Nick killed his wife or not, only that he wins the case. At the end, Nick isn't facing going to jail, which is the extent of Tanner's interest in him; he may be living with a psycho who tried to frame him for murder, but at least he's not in prison, right?