Vortex
Whats the motive?
Mr Bamber, ring your step son, and tell him his sister has gone berserk with a gun...or, talk into this recorder and repeat the following....then i'll blow everyones brains out, and make it look like Jeremy's sister killed everyone, then killed herself....but i'm just a lunatic that stumbled on the farmhouse...And the only person to gain anything, is the person that inherits a fortune...oh, but the lunatic had a great time framing Bambers sister.
In the mean time, after making the call, i'll potter about, hoping the police get a chance to see me leaving the scene.
If Jeremy Bamber is going to prove he's innocent, he has to prove his sister did the killings. Having people suggest that a third party was involved, only adds to suspicion that a hit man was hired, and helped to give Jeremy Bamber an alibi via a phone call from the farmhouse.