Act of vandalism in Mission Viejo reported to Sheriff’s Department, FBI

Messages spray-painted recently on the public right-of-way regarding a US congresswoman and the US President were reported to the Orange County Sheriff’s Department and the Federal Bureau of Investigation (FBI).
The incident happened on the sidewalk in front of City Hall near the intersection of La Paz and Marguerite Parkway where regular protests take place.
The vandalism was reported to the Orange County Sheriff’s Department, and because the messages target federal officials, the FBI has also been notified.
Comments
Why did the City publish an…
Why did the City publish an article on the webpage and social media channels implying that recent rallies on the corners of La Paz and Marguerite were somehow responsible for "spraypainted graffiti" including death threats (8647) which prompted the FBI to be notified?
The OC Register did not have a photo either.
This sounds like more 'fake news' as there does not seem to be anyone that actually has a photo of this, including the police! I hope this is not political propaganda, as we have been bombarded with so much since January.