A vinyl peace sign installed at a playground in Mystic, Connecticut, dedicated to a victim of the Sandy Hook shooting was stolen last week by a man claiming that the Newtown massacre never happened.

After stealing the 50-pound sign from the Grace McDonnell playground, the man called McDonnell’s mother saying he did it because he believes the shooting at the school was a hoax, according to CBS2.

According to the mother, Lynn McDonnell, the man told her that her daughter “never existed.”

Grace McDonnell was one of twenty children killed by 20-year-old Adam Lanza when he went on a shooting rampage at Sandy Hook Elementary on December 14, 2012. Lanza also shot and killed six adult staff members and his mother.

Sandy Hook ‘truthers’ believe that the Newtown shooting never occurred or was part of a ‘false flag’ operation designed to open the door to the confiscation of all guns by the government.

The Grace McDonnell playground is one of 26 planned playgrounds being built by the Where Angels Play Foundation in honor of all 26 victims.

The latest incident comes two weeks after another playground sign, located in Hartford, was vandalized with someone spray-painting ‘Peace to Sandy Hook,’ a peace sign, and the numeral ’2' on it.

Signs at both locations are being replaced.