steve Julie must have agreed with Jeremy's thoughts as she would have warned the family of his plans.
Julie was blinded by love. So many people with premonitions:Nevill speaking to Barbara Wilson about the shooting season coming up and "accidents do happen",Barbara herself in her second statement to Police which has mysteriously disappeared,Colin having those terrible thoughts outside White House on the Sunday,June writing a letter to her children to be opened in the event of her death..
And yet nobody thought Sheila a danger to herself or people around her. She had access to the best medical services available at the time and would have mugged through somehow with her next injection of Haloperidol,even if she did rely heavily on Colin in the twins' early years. There was only one person who did not want those twins to grow up,and he's rightly at this moment sitting in a prison cell..