Tariq Jahan's sentence was suspended for two years and he was ordered to complete 100 hours of unpaid work.
He was also told to pay £1,000 compensation this victim within 12 months.
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Jed Foster denied any involvement in the "horrific murder", his lawyer told the court.
The outages at two power plants caused ‘simultaneous and unexpected power losses’, according to an interim report.
Simon Cheng Man-kit works at the British Consulate-General in Hong Kong.