The man who murdered inspector Bryson Anderson with a hunting knife following a protracted siege at his mother's property has been sentenced to at least 26 years in prison. Mitchell Barbieri, 21, who escaped the mandatory life sentence reserved for cop killers, broke down in tears as he was sentenced to a maximum 35 years at the Supreme Court in Sydney on Thursday. His mother Fiona, 46, meanwhile was sentenced to a minimum of seven years and six months for the manslaughter of the NSW police officer and various other offences. Scroll down for video Wife of slain police officer Bryson Anderson, Donna, along with NSW Police Commissioner Andrew Scipione, (left) and children, Darcy, (right), and Olivia, (centre), read a statement to the media on Thursday
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Bryson Anderson was stabbed to death at the Barbieri's Oakville property in north-west Sydney in December 2012
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Mitchell Barbieri broke down as he was sentenced to maximum 35 years
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His mother, Fiona was sentenced to a minimum of 7 years and six months
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Family, friends and uniformed colleagues packed the court for sentence
At the time of conviction, detective inspector Anderson's widow, @placeholder, told court that she lost 'her best friend' the day that her husband was killed.