AP Explains: Gab, where Pittsburgh shooting suspect ranted

This image shows a portion of an archived webpage from the social media website Gab, with a Saturday, Oct. 27, 2018 posting by Pittsburgh synagogue shooting suspect Robert Bowers. HIAS, mentioned in the posting, is a Maryland-based nonprofit group that helps refugees around the world find safety and freedom. (AP Photo)

A message on the site Gab is displayed on an iPhone in New York on Monday, Oct. 29, 2018. The social media site popular with far-right extremists and apparently used by the Pittsburgh synagogue shooting suspect, advertises as a haven for free-speech fans. Its founder, Andrew Torba, says the site is being censored and smeared. On Monday Gab was effectively, if momentarily, left internet-homeless, long ago cut off from smartphone app stores but now banned from payment processors such as PayPal and internet infrastructure providers. (AP Photo/Jenny Kane)

NEW YORK — A social media service believed to be used by the Pittsburgh synagogue shooting suspect to post hateful rants advertises itself as a haven for free speech.