Judge Lord Matthews described Alesha MacPhail 's teenage killer Aaron Campbell as a "cold, callous and dangerous individual" when he jailed him for 27 years.

In his statement to Glasgow High Court he said the 16-year-old showed no remorse for the brutal killing of the six-year-old and even struggled not to laugh during the nine-day trial.

Lord Matthews said Campbell told social workers: "You have expressed not a flicker of remorse.

"At points during the trial you had to stop yourself from laughing, you had to tell yourself to zip it."

(Image: Facebook)

Campbell was found guilty of the abduction, rape and murder of six-year-old Alesha MacPhail on the Isle of Bute after a nine-day trial last month.

Lord Matthews lifted reporting restrictions preventing Campbell from being identified the following day.

Alesha MacPhail's body was found in woodland on the Isle of Bute on July 2 last year.

(Image: YouTube)

The six-year-old from Airdrie was visiting family in Rothesay when she died.

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She was reported missing by her grandmother, Angela King, 47, at 6.23am around 10 minutes after realising she was not in her bed.

Her body was found a short time later.