R. v. Maestrello

R. v. Maestrello

Cumulative errors in the trial judge's final instructions — notably an erroneous post‑offence conduct direction that risked backward reasoning and a deficient response to a jury question which compounded that error — deprived the accused of a fair trial; convictions set aside and a new trial ordered.

Source-derived case information.

Citation
2019 ONCA 952
Parties
Respondent: Her Majesty the Queen; Appellant: Jason Maestrello
Court
Court of Appeal for Ontario
Jurisdiction
Canada
Judgment Date
4 December 2019
Procedural Posture
Criminal / Appeal From Jury Convictions
Outcome
Appeal allowed; convictions set aside; new trial ordered
Legal Topics
First Degree Murder, Attempted Murder, Aiding and Abetting, Vetrovec Warning, Post‑offence Conduct, Jury Instructions, Fresh Evidence, Third Party Suspect
Source Language
en
Criminal Law Evidence Appeals Jury Procedure First Degree Murder Attempted Murder Aiding and Abetting Vetrovec Warning +4 more

Source-derived case record

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Parties

Her Majesty the Queen

Respondent

Jason Maestrello

Appellant

Procedural Posture

Criminal / Appeal From Jury Convictions

  1. 1 Whether the jury verdicts were unreasonable
  2. 2 Whether trial judge erred in failing to give or inadequately giving Vetrovec warnings
  3. 3 Whether the trial judge misdirected the jury on post‑offence conduct and invited backward reasoning

Ratio Decidendi

Cumulative errors in the trial judge's final instructions — notably an erroneous post‑offence conduct direction that risked backward reasoning and a deficient response to a jury question which compounded that error — deprived the accused of a fair trial; convictions set aside and a new trial ordered.

Court Disposition

Appeal allowed; convictions set aside; new trial ordered

Orders

  • Convictions on two counts of first degree murder and one count of attempted murder set aside
  • New trial ordered on all three counts of the indictment