Police Chief Ed Flint said the investigation hasn't produced suspects yet, but the painted messages — about a dozen of them — have been removed. The slogans included "F--- the 1 percent" and a message advocating violence, he said.
Although no suspect has been identified, the FBI was consulted because it tracks activist movements such as Occupy Wall Street, which began making national headlines in late 2011 for staging protests against economic inequality and the degree of corporate influence in Washington. The movement coined the term "1 percent" to refer to the country's wealthiest people.
The vandalism occurred between 6:30 and 10:30 p.m. that Sunday, according to police. The department issued an alert, and reminded residents to keep their home security systems working; property gates, doors and windows closed; exterior lights on at night; and vehicles locked with no valuables inside the passenger compartment.