According to the chief of police department in Pinhais, Marcelo Magalhaes, the UFC star felt offended when a woman called him "rotten" on Twitter.
"We’re still investigating to get her name, address and phone," Magalhaes told Globo. "It’s a 40-year-old woman who wrote on the internet, in a social media, several phrases, including ‘Brazil will see the idol and rotten that you are’."
In an interview with a local radio station, Magalhaes said the woman also called Silva a "s—--ty idol."
The process is expected to go to court next. The penalty for this type of crime in Brazil is up to six months in jail, or a fine.