I don't want to criticize Rachael's family, daughters especially, but they really do need to do the things Pickie Chickie suggested above.
In addition, they need to have a spokesperson. The media won't do anything without JUICE... they need something to report on.
Look at Susan Powell for just one example... Her husband likely disposed of her also.
Rachael's story is even more compelling because of the guns and Capone. The stalking.
I'd release a little snippet at a time of Rachael's voicemails. THAT would get some attention.
In Susan's case, the friends went all out. Made a huge Facebook push to get members. Crazy numbers of members signed up for it. They had someone experienced with media to be spokesperson, they had tearjerker interviews with parents and family.
Unfortunately to get any media, there is going to have to be something done.