Woman accused of threatening Sandy Hook victim's parent pleads not guilty

NEWTOWN, CT - JANUARY 14: Parents of Sandy Hook Elementary massacre victims hold hands during a press conference on the one month anniversary of the Newtown elementary school massacre on January 14, 2013 in Newtown, Connecticut. Eleven families of Sandy Hook massacre victims came to the event one month after the shooting to give their support to Sandy Hook Promise, a non-profit with the goal of preventing such tragedies in the future. (Photo by John Moore/Getty Images)

NEWTOWN, CT - JANUARY 14: Parents of Sandy Hook Elementary massacre victims hold hands during a press conference on the one month anniversary of the Newtown elementary school massacre on January 14, 2013 in Newtown, Connecticut. Eleven families of Sandy Hook massacre victims came to the event one month after the shooting to give their support to Sandy Hook Promise, a non-profit with the goal of preventing such tragedies in the future. (Photo by John Moore/Getty Images)

A Florida woman who believes that the Sandy Hook Elementary School mass shooting was a hoax pleaded not guilty Monday in federal court to threatening one of the victims' parents.

Lucy Richards will be released on a $25,000 bond after she pleaded not guilty to four counts of transmitting threats through interstate communication. She arrived at the Broward County courthouse using a walker. Richards told Judge Barry Seltzer that she is on disability and hasn't worked since 2004.

The victim's parent, who lives in Palm Beach County, told the Palm Beach Post on Dec. 7 that Richards had left several threatening messages riddled with vulgarities and death threats.

Among the messages sent by Richards was one in which she said: "Death is coming to you real soon, and (there's) nothing you can do about it," according to a federal indictment.

Among the conditions of Richards' release is that she stay off websites that cater to Sandy Hook deniers and other conspiracies.

The Sandy Hook massacre in Newtown, Connecticut, on Dec. 14, 2012, was one of the worst mass shootings in U.S. history, resulting in the deaths of 20 children and six adults.

>> WATCH: Parents of Sandy Hook victims promote video with powerful message

In a related story, former Florida Atlantic University professor James Tracy is seeking to get his job back in a federal court. Tracy, known for being vocal about controversial mass-casualty conspiracies like the Sandy Hook shooting, was fired in January.

Part of his case was dismissed Friday by a judge, but according to his attorney, the crux of Tracy's case remains intact.