Where an offender commits two discrete murders with intent to kill, each with serious aggravating features, minimum non-parole periods of 21 years are manifestly inadequate even where the offender pleads guilty at the first reasonable opportunity, shows genuine remorse, has no prior criminal record, and has good prospects of rehabilitation. The standard percentage discount for a plea of guilty (capped at 25% under s 9AA of the Sentencing Act 1995 (WA)) does not apply to non-parole periods consequent upon a head sentence of life imprisonment, though a plea of guilty will ordinarily result in a significant discount. Drug-induced psychotic disorder does not mitigate sentence where the offender is morally responsible for their self-induced condition.
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