Greg Matters, 40, was killed in September 2012, after a lengthy confrontation with police at his home just outside Prince George, in Central B.C.
Matters served in the Canadian military for 15 years, and suffered from post-traumatic stress disorder. His family has questions about how police acted in light of his PTSD.
Earlier this year, B.C.'s independent investigations office cleared the officers of any criminal offence. But Matter's mother Lorraine isn't satisfied with their investigation, and hopes more details will be revealed at the inquest.
- Read more about the shooting and investigation
"I feel that the true story has not been told. Gregory always believed in justice and the right thing to do. And no, I'm not happy with the outcome so far," said Lorraine.
She also has questions about why she and Greg's psychiatrist were not allowed to speak with Greg during the stand-off. Ultimately, she hopes this inquest will prevent similar deaths.
"He tried so hard. And once we'd gotten help, Greg really worked hard to get his life back to normal. And it was really difficult."
A coroner's inquest cannot make findings of wrongdoing. It can only make recommendations.