Sydney Morning Herald | 'Disturbed state of mind': Judge says fear pushed Jessica Silva to kill her abusive ... 9news.com.au March 06, 2015: Despite being convicted of the manslaughter of ex-partner James Polkinghorne, 24-year-old Jessica Silva will not be serving any jail time for her crime. 9NEWS. A judge has decided not to send Jessica Silva to jail after ruling she was in a ... Jessica Silva escapes jail for stabbing ex-partner James Polkinghorne to death Proposal for domestic violence register in NSW Sydney abuse killing exceptional: judge |