Facebook allowed a man charged with threatening to kill congresswoman Ilhan Omar to post violent and racist content for years, and took no action to remove his posts when he was arrested.

Patrick Carlineo, of upstate New York, posted several entries to his Facebookpage alluding to violence against Muslims and US officials including former president Barack Obama, a Guardian review found.

Carlineo, 55, frequently used the platform to taunt Muslims, attacking them with racist slurs and saying he wished he could confront a group of Muslim politicians with “a bucket of pig blood”. He also shared video clips of alarmist reports about American Muslims by Fox News.

Carlineo’s entire profile was removed by Facebook after the Guardian asked the company why the posts remained online, two weeks after Carlineo was arrested. He is charged with threatening to kill Omar, one of the first Muslim women to serve in the US Congress. Carlineo is due to appear in federal court on Tuesday.

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