The woman accused of sending a poison letter to the White House has been identified as Quebec resident Pascale Cecile Veronique Ferrier.\nThe envelope containing ricin, a potentially deadly substance that comes from castor beans, was addressed to President Trump.\nFerrier was detained by U.S. Customers and Border Patrol (CBP) officers after attempting to enter the country via the Peace Bridge between Fort Erie, Ontario and Buffalo, New York.\nShe appeared in court on Tuesday afternoon.\nAn affidavit filed by an FBI agent and shared with MTL Blog details the contents of the letter.\nEditor's Choice: Quebec's Health Minister Clarified The New Rules For Private Gatherings Using Emojis\n\nWhat did Pascale Ferrier's alleged letter to Trump say?\nIn the affidavit filed Sunday, the agent alleges that she called Trump an "Ugly Tyrant Clown" and insisted that he give up his bid for reelection.\nThe filing also says Ferrier threatened to "find better recipe for another poison" or "use my gun" in the case that the first attempt "didn't work."\n"You ruin USA and lead them to disaster," the document reads. "I have US cousins, then I don't want the next four years with you as president."\nThe letter was signed, "FREE REBEL SPIRIT."\n\nWere there other envelopes?\nThe FBI agent says envelopes containing a similar "powdery substance" were sent to "individuals working at penitentiaries and detention centres in Texas."\nOnline records show that Ferrier was previously charged in Mission, Texas for the unlawful carrying of a weapon.\nOn Monday, Hidalgo County Sheriff Eddie Guerra wrote on Twitter that he and three members of his staff each received an envelope containing ricin. He said no one was injured.\nMEDIAI can confirm that envelopes, containing the deadly toxin ricin, was mailed to me and three of my detention staff. At this time due to a active federal investigation I cannot make any further comments but a media release will be sent out tomorrow. No injuries were sustained— Sheriff Eddie Guerra (@SheriffGuerra) September 21, 2020\n\nThe affidavit filed Sunday says the letters sent to the Texas authorities contained language similar to that in the letter to Trump, as well as fingerprint evidence that matched Ferrier.\n\nWhat is she charged with?\nPascale Ferrier has been charged with making threats against the President of the United States.\nThe FBI agent's affidavit alleges that Ferrier also made her hatred of Trump known on Twitter and Facebook, where posts including the hashtag "#killTrump" were found.\nUpon her detention by the CBP in Buffalo, she is also alleged to have told officers she was wanted for ricin letters.\nThe CBC reports that a plea of not guilty was entered in court on Tuesday.