Jeremy had the strength and the weaponry to fight off his victims one by one if necessary. It's as simple as that. After the murders he was cheerful,though in interviews with Police tried to pass this off as manic depression. He would be far more believable almost twenty-eight years on if he said "I disliked my relatives but I didn't kill them",but instead we have this unconvincing eulogy and the pacing up and down in the cell with Nevill's "it will all come out in the wash" hanging over the scene.
It's distressing,and not convincing anyone.
Dear Steve,,,,Jeremy couldn't knock the skin off a rice pudding. No disrespects to the man,,but he was a 24 year old wimp whose interests were women, particularly the married experienced ones,,having a good time and travelling abroad. Murder would have been the last thing on his mind.
A lot of jealousy and resentment surrounded him at that time,,which he was blissfully unaware of,fortunately.