Yes Ian. MacFall said that it was a case of frenzy thereby telling us the obvious but Oliver argued the fact that it was a premeditated act - thereby ruling out an insanity plea due to MacNaughten rules - diminshed responsibility due to it (not that an insanity plea was going to be considered by Wallace). It makes the murder even more chilling to think that someone stood on that corner of Rochester Rd making a telephone call with the intention of carrying out a murder, be it Wallace or Qualtrough...