ALthough I never thought Mrs. Ramsey was guilty of killing her daughter, I did think she was guilty of withholding evidence. I think their son, Burke, accidentally choked Jon Bonet to death. I don't know what they were doing, but it involved her being stunned with a Stun Gun, and then being choking.
My opinion, the parents thought they were doing the best under the circumstances. Nothing could bring back their daughter, but they could lie to protect their son. ANd that is what I think they did.
Time will tell, I am sure.
Stun gun use is simply a *theory* - no proof.