'Alt-right' social network Gab's connection to an anti-Semitic massacre
b"Just minutes before one of the deadliest attacks on Jews in America's history, the alleged shooter posted a message to Gab, a social media network known for attracting white nationalists and the alt-right. So, what is Gab, and where does it fit in the big picture of online hate? Slate's tech reporter April Glaser explains."