FORT LAUDERDALE, Fla. (AP) — A Florida woman accused of threatening the parent of a boy killed in the Sandy Hook school shooting because she thought it was a hoax pleaded not guilty Monday and was barred from visiting websites that promote such false conspiracy theories.

Lucy Richards, 57, entered her plea in Fort Lauderdale federal court after a public defender was appointed to represent her. The lawyer, Michael Spivack, declined to comment after the hearing.

Richards was arrested Dec. 7 in Tampa on four felony counts of transmitting threats to Lenny Pozner, father of 6-year-old Noah Pozner w...