"A motive is not one of the four elements of murder that needs to be proven.
The four elements to murder are:
1.Did Erin Patterson cause the deaths of the lunch guests? If the jury is satisfied of that, they can move on to number two;
2.Did she do it deliberately? If they're satisfied of that, then they need to look at;
3.Did she do it with an intention to kill them or to cause really serious injury — emphasis on the word
really. If they're satisfied of that, we get to the final point;
4.Did she commit the killing without a lawful justification or excuse, such as in self-defense, which is not relevant to this case.
Justice Christopher Beale said to the jury that one of the key points in this trial was going to be that point number three — did she do it with an intention to kill or cause serious injury?"
An internationally recognised fungi expert has given evidence in the trial of Erin Patterson, who is accused of murdering three relatives with a poisoned beef Wellington meal. Look back at how the day unfolded in our live blog.
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