Have you checked out other forensic nursing websites? This forum has a lot of great information, but there are also other websites specific to forensic nursing. There is the International Association of Forensic Nurses at: http://www.forensicnurse.org
On that site you will find a list of schools
that have certificate and graduate forensic programs (although,Quinnipiac University, still on that list, recently put their program on hold). You can also check out whether or not your state has a local chapter of forensic nurses to join. That way you can also find out what other forensic nurses are doing in your state.
There is also American Forensic Nurses website at: http://www.amrn.com/faq.html
which also offers forensic nursing education in various areas and is another resource. And also The Forensic Nurse at: http://www.theforensicnurse.com
In light of your interests, you may also want to check out the American College of Forensic Examiners International at: www.acfei.com
There are many others out there. And obviously, this forum contains a lot of good information.
On a personal note, I would say this: You don't need a master's degree to be a forensic nurse. Although I have my MSN as a Forensic Nurse Clinical Specialist, and I also have my BS in Criminal Justice - Investigative Services, I read many posts and am on listserves where the forensic nurses simply did a certificate. I work as an ER nurse who uses what I know in that setting (and yes, that includes, but is not limited to, being a SANE), but I do not go to crime scenes or work as a death investigator. BUT - in my MSN program, I did get to do a lot of hours of internship in various settings ranging from law offices to state agencies to medical examiner to riding with police (a total of 600 hours over three clinical semesters). I got to do these because the university had contracts with those agencies. These internships are sometimes more difficult to get with some of the certificate programs out there due to insurance and liability-type stuff. And then there are some certificate programs that have a limited clinical component to them. So it depends on what's important to you. I would suggest taking your time in shopping around to see what forensic program is a best fit for you. And then - yes, you may very well need to relocate to really get the position you want. Some states are astute and understand the need for forensic nurses, other states, not so astute.
One more thing: I got into nursing five years ago solely to be a forensic nurse. I have learned that experience really counts in this field; your experience as a nurse, along with your education, is what really gives you your credibility as a forensic nurse.
Good luck - and please, share your experiences. I am sure they will be valuable.