If they are not interested in the money, they could sue just the FA in court, and then force the sorry lot of characters to produce discovery, testify, etc. You get no money but can pinch them good in a very public manner.
And she will no choice except to take the stand.
I hate to even speculate about it, because the families might be holding that in reserve.
I've suggested numerous times that the boys file suit, possibly in their respective states, against Mangum and get her on record as to what all Nifong, Gottlieb and all the rest of them have said to her at various times with respect to her testimony, identifications and pursuit of the case. Then start an avalanche of subpoenas.