news from lincoln crown court. a violent ex—partner who fatally stabbed a mother and her young autistic son in front of a distressed baby before leading police on a 24—hour manhunt has been convicted of their murders.daniel boulton travelled 28 miles on foot from skegness to louth, lincolnshire, in order to kill his former girlfriend bethany vincent and her nine—year—old son darren henson at around 8pm on may 31 last year. boulton tried to claim he was on "autopilot" at the time of the murders, butjurors dismissed his defence of loss of control. the 30—year—old killer admitted manslaughter on the second day of his trial, as well as assault with intent to resist arrest, and burglary, but denied murder. boulton, of alexandra road, skegness, will be sentenced at the same court on wednesday. daniel bolton the violent ex partner who fatally stabbed a mother and her young autistic son in front of a baby has been convicted of the murders. convicted at lincoln crown court. the met police says it's "deeply sorry