I believe the consensus is that the SCPD and the Suffolk County leadership have done everything possible to thwart the solving Shannan Gilbert and the LISK deaths. The fact State Senator Boyle has stepped forward and placed the public's and the media's focus back on the case is a good thing. I am not sure anymore civil law suits are required just now.
However, if some federal politician on Long Island stepped forward in the same way Boyle did, and as a result the State and Federal Justice Departments took action, then things would start to move.
I as I said before, I feel it is political pressure which will lead to resolution of these cases.