A Florida animal-rights activist charged with posting harassing messages directed at a Detroit researcher who works with dogs has pleaded guilty to trespassing.
The Wayne County prosecutor's office says that Camille Marino of Wildwood, Fla., will be sentenced Dec. 5.
Marino also pleaded guilty Monday to unlawfully posting a message with aggravating circumstances.
She was arrested in May after chaining herself to a library door at Wayne State University in Detroit.
Marino had called Donal O'Leary a "war criminal" and worse for using dogs for cardiovascular experiments. She also posted his address and other personal information online.
O'Leary had received a personal-protection order against Marino.
Authorities say Marino violated a campus ban by appearing at Wayne State. She says her protests were protected by the First Amendment.