Kevin Daigle “is a damaged person,” John Fabian, a psychologist who specializes in criminal and civil forensic psychological and neuropsychological evaluations, told jurors Tuesday morning on the fourth day of testimony in the penalty phase of Daigle’s first-degree murder conviction.

Daigle was convicted in 2019 of fatally shooting Vincent in the face when the officer tried to help him on the side of the road on Aug. 23, 2015.

Fabian, who said he met with Daigle three times beginning in January of 2017, said Daigle has the dual diagnosis of chemical dependency as well as mental illness. He said medical records document that Daigle has suffered from depression since 1998, and among those records are files for multiple hospital stays for suicidal behavior beginning in 2005.

Daigle “tries to numb his physical and emotional pain,” Fabian testified. “He’s not exaggerating or faking his mental illness.”

Fabian said Daigle has had concussions due to multiple vehicle crashes, was a chronic drinker, suffers from chronic obstructive pulmonary disease (COPD) from years of smoking, has abused multiple drugs and had a mini stroke at some point during his adult life.

“He’s also on his way to dementia. Period. It’s very clear,” Fabian testified.

Fabian said he believes Daigle was impaired during the time of Vincent’s shooting from both drug and alcohol use coupled with his mental illness.

When cross-examined by Calcasieu Parish First Assistant District Attorney Jacob Johnson, Fabian said he would agree that information Daigle gave medical personnel when applying for disability and Social Security benefits were “to benefit Daigle” and that Daigle has lied about the type of substances he abused in medical documents.

He said he would also agree with Johnson that if Daigle claims to have been suicidal the day he shot Vincent, it would have been easier for him to kill himself rather than “cock his gun and aim it at a person who was running away from him.”

“He is not a psychopath,” Fabian said. “He has anti-social traits but I do not believe he has an anti-social disorder.”