Cameron John Oakley pleaded guilty to manslaughter of small-town nemesis
Lachlan Hutchins, 25, fatally stabbed five times in the stomach, chest and neck
Court heard Oakley sent several chilling texts to friends after the 2019 stabbing
Offered his deepest regret and sincere remorse to Mr Hutchins family in a letter
Oakley has already spent 644 days in custody and will be sentenced at later date