I've read many comments by people stating that this film is bias because it only reflects the point of view of the victims who were mainly female and that is just giving support to the feminist movement but that is not the case.
This film isn't about the shooter, it isn't about the families...it's about the victims/survivors of this horrific ordeal. It does not focus on the background of the killer, it does not explain in great detail why he committed this terrible act of violence... it depicts what the victims/survivors went through.
Some people tend to feel empathic for the shooter, commenting on the fact that he felt prosecuted for his gender and that he felt threatened and hatred for females who in his own opinion were taking jobs away from males who deserved them... Kind of like the two shooters from Columbine who to some people became a icon for anti-bullying, thinking that the only reason they committed these crimes was because they were prosecuted by their peers and the community. It doesn't change the fact that both the Columbine shooters and Marc Lepine took innocent lives and then so cowardly take their own.
Some people liken this movie to "Elephant" and I agree but it also reminds me of "April Showers" since both movies did not focus on the killer but on the people who suffered through the event.