U.S. law protects gunmakers from lawsuits like these; not so in Canada.
He made the announcement where the deadly Toronto Danforth shooting unfolded last year.
On this episode: We look at the state of Canadian gun regulations one year after the Danforth shooting.
The Liberals have been reluctant to consider sweeping changes until after the federal election.
Two people died a year ago when a gunman fired shots in Toronto's Greektown.
The shooter did not have a previous criminal record.
The complaints against her amount to a "personal attack" for speaking on the issue, a fellow doctor said.
"We don't have to live with the laws that could be changed to help prevent this from happening again."
He was also described as an "emotionally disturbed loner."
Police say they're searching for several suspects.