A Canadian man who killed a lighting technician in a deadly shooting at a rally following the 2012 election of Quebec's separatist premier has been sentenced life in prison with no eligibility for parole for at least 20 years.

Quebec Superior Court Justice Guy Cournoyer sentenced Richard Henry Bain, 66, in a Montreal courtroom Friday.

Bain was found guilty of second-degree murder in August, convicted by a jury in the killing of Denis Blanchette outside a Sept. 4 2012 victory rally for Pauline Marois of the Parti Quebecois.

Marios was delivering a victory speech inside the Metropolis nightclub during the incident. Shots fired by Bain also wounded a 27-year-old stage hand. Bain was also found guilty of three counts of attempted murder.