You are placing a completely ridiculous meaning on the time frame implied by the words "planned and deliberate". Saying that a plan concocted in a few seconds prior to a killing qualifies as first degree murder is not supported by case law precedents.
From
http://www.owjn.org/owjn_2009/index.php?option=com_content&view=article&id=185&Itemid=107
- Murder is first degree only when it is both planned and deliberate. The planning and deliberation must come before the beginning of the homicide. For example, someone makes a conscious decision to kill someone else, sets a plan in place and carries it out.
- All other murders are second degree. The homicide must still be intentional or it is not murder, but it becomes second degree murder when the intention to cause the person's death did not occur before the act began. In other words, there was no planning or deliberation. For example, someone assaults another person without having had any plan ahead of time to kill this person, but once the assault is commenced, intends to kill him.
- If the death is a culpable homicide but not murder, it is manslaughter. In other words, where there was no intent to cause death (or bodily harm that is likely to cause death), but the person causing the death was negligent as to whether death occurred, the appropriate charge is manslaughter. A very common example of manslaughter is drunk drivers who cause death. The drunk driver had no intent to cause death or even bodily harm, but his actions were negligent to the point that he has criminal responsibility for the results of his actions.
Here are some more facts for you, and some common sense too. Try and absorb some of it this time.
The specific meaning of "planned and deliberate" is defined by precedent set by the British Columbia Court of Appeal in R v Cairns, 51 CCC 3d 90:
"I think that in the (Criminal) Code, "planned" is to be assigned, I think, its natural meaning of a calculated scheme or design which has been carefully thought out, and the nature and consequences of which have been considered and weighed.
"But that does not mean, of course, to say that the plan need be a complicated one. It may be a very simple one, and the simpler it is perhaps the easier it is to formulate.
"The important element, it seems to me, so far as time is concerned, is the time involved in developing the plan, not the time between the development of the plan and the doing of the act. One can carefully prepare a plan and immediately it is prepared set out to do the planned act, or alternatively, you can wait an appreciable time to do it once it has been formed.
"As far as the word "deliberate" is concerned, I think that the Code means that it should also carry its natural meaning of "considered," "not impulsive," "slow in deciding," "cautious," implying that the accused must take time to weight the advantages and disadvantages of his intended action."
None of this definition of "planned and deliberate" would apply to a plan concocted in seconds and in the heat of the moment.