Antisemitic messages, scrawled inside the stairwell of Union Temple in Brooklyn Heights, New York, led to the cancellation of a political event that was supposed to be held inside the synagogue Thursday night, the New York Post reported.In what seems to be the third incident of antisemitic graffiti in the United States this week, after a synagogue in California was defaced with vile slurs and swastikas were sprayed on a private home in Las Vegas , "Kill all Jews" scrawlings were discovered on a door of the temple, along with other hateful slurs on the second and fifth floor, the report said.The event that was scheduled to take place in the synagogue was cancelled due to security concerns.The incidents follow the deadliest antisemitic mass shooting in the history of the United States last Saturday, when Robert Bowers entered the Tree of Life synagogue in Pittsburgh, Pennsylvania, opened fire and killed 11 people The horrifying massacre reinvigorated the discussion around antisemitism in the United States with many calling for European-style security in Jewish institutions around the country.