The alleged crime happened about 5:50 p.m. Wednesday, shortly after the interior portion of the monument was closed for the day, Cleveland’s FOX 8 reported.
Surveillance video shows three people walking around the monument, which includes a pedestal and a group of Civil War soldiers preparing to fire a cannon.
One of the three people then climbs the statue and breaks off a portion of the cannon, the station reported.
The broken piece was later recovered, according to the Cuyahoga County Sheriff’s Office.
The suspect will be charged with a felony under federal law, Ted Prosse, president of the city’s monument commission, told FOX 8.
The monument pays tribute to more than 9,000 Cuyahoga County residents who served in the Civil War, the report said.
In 2015, three suspects were sentenced to community service and ordered to pay more than $10,000 in restitution after damaging the monument, Cleveland.com reported.