NEW YORK (AP) — “Ghostbusters” star Leslie Jones publicly abandoned Twitter , one of several celebrities to do so after becoming the target of sexist and racist abuse on the service. Jones, who is black, fielded a barrage of Twitter harassment before she gave up, all because, as she put it, “I did a movie.” Twitter users hurled racist slurs, compared the comic actress to the gorilla recently killed at the Cincinnati Zoo and sent Jones obscene pictures. Twitter banned conservative provocateur Milo Yiannopoulos, technology editor of the right-wing site Breitbart News, for “participating in or inciting targeted abuse of individuals,” according to a Twitter notice emailed to Yiannopoulos and published on Breitbart .