Not saying at all that we have the facts in these recent shootings, but you are absolutely correct about Snopes.
Snopes/Factcheck.org/Reddit/and several others, have for years remained faithful in their support of left-wing narratives throughout academia and the political arenas.
Nearly all of these organizations are owned by proactive left-wing corporations or individuals, and have almost no conservative representation.
As an academic, I have many times had to deconstruct false narratives and provide context to that which was missing, in politics, economics, and history.
These organizations were literally created to advance the liberal/progressive agenda, while acting to overwhelm those who could correct them with myriad subtle or blatant false arguments.
Often their facts contain truth. Sometimes their facts are just wrong. However, there is no such thing as an author without bias (including mine), and in most cases, their strategies clearly revolve around critical missing context, and cloaking or dismissing the true and greater agenda of progressive/socialist individuals and organizations.
What I find amazing is that so many self-described “conservatives” seem compelled to look to these subversive leftist websites as arbiters of truth.