It is not reasonable to believe that Mrs Ramsey would UNNECESSARILY include a non-conspirator or a non-accomplice in a lie; especially, if she had already cast suspicion on that person!To clarify my prior post, I think PR was lying about LHP helping to clean up the glass.
However, unlike Mrs Ramsey, LHP did have a reason to dispute Mrs Ramsey’s claim. LHP was named a suspect by Mrs Ramsey and LHP was subsequently investigated and harassed by media and such. Her life was detrimentally affected and it could be said that she was hurt and felt turned upon. To this day there are people theorizing about her involvement in this crime. So, it could be argued that LHP had motive to dispute Mrs Ramsey’s version of the clean-up.