Claim: Alert Pro-2A Advocate Warned FBI of Likely Mass Shooting Half-Hour Before Chabad of Poway Synagogue Attack
A person who describes them self on Twitter as a “Responsible Gun Ownership and Safe Shooting Sports Advocate” tweeted an urgent warning Saturday at 11:07 a.m. PDT time that a mass shooting was about to occur and posted a screen shot of an 8-chan post...