Memberships have more than doubled in a national LGBT pro-gun rights organization since a gunman opened fire at a gay nightclub in Florida, killing 49 people. Pink Pistols Utah chapter President Matt Schlentz said Pink Pistols membership has grown from 1,500 to 4,000 since Omar Mateen's June 12 rampage, the Salt Lake Tribune reported (http://bit.ly/29p0eMI).