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Ten people were involved in the fight.
Inmates caused extensive damage to the centre.
The body of Rachel Pernosky, 18, was found in 2013 after she was reported missing.
No further information about the person will be released while family members are being notified.
He was given 5.5 years, but his remaining sentence is just over 14 months due to time served.
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The sexual misconduct is alleged to have occurred at RCMP headquarters in Vancouver between 2009 and 2010.
"We're very grateful and we're all just bursting.''
Christopher Neil was dubbed "Swirl Face'' by international media after authorities released pictures of a man engaged in sex acts with two young boys, showing his face disguised by a digital swirl.
There are now three investigations involving the crash.
Const. Sarah Beckett leaves behind her husband and two sons.
The service will begin with a procession of officers in Colwood, B.C.
The city has seen 31 shootings so far in 2016.
Const. Sarah Beckett died on Tuesday, leaving behind two children.