A forensic neuro-psychologist has told the jury at the second-degree murder trial of a Windsor man that the accused is not a "normal human being."
John Wayne Pierre is charged in the November 2016 stabbing death of his ex-girlfriend, Lesley Watterworth.
Dr. John Fabian says he examined Pierre in June. He told the court that Pierre has "brain deficits" and that "we're not dealing with a normal human being."
Fabian testified that Pierre has had a number of concussions that have impacted his brain functioning.
Dr. Fabian also told the court, Pierre did not meet the standard for post-traumatic stress disorder but he did have specified trauma that was stress-related.
The jury is expected to hear final submissions from the Crown and defence and a charge from the judge before starting their deliberations, likely on Friday.

Windsor Murder victim Lesley Watterworth, taken before her death in November 2016 (courtesy Watterworth family)