The sound output on the new Mac Pro is 12 DB, making it as quiet (or noisy) as a Mac Mini, Apple says.
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The attack by Salih Khater was caught on dramatic CCTV footage which was played in court.
Edward Cairney and Avril Jones were found guilty of her murder by a majority verdict last month following a seven-week trial.
The birds returned to the shop despite being taken back to the ocean by police in Wellington.