Law and Situational Problem

Renato is a well known activist, he is always against in the present administration whether the government is doing right or wrong. One time he saw a post on his Facebook wall saying that the "President is a gay". Then he shared the said post on his Facebook regardless of knowing or not knowing the authenticity of the said post. Does Renato is liable for the crime of cyber libel? Justify your answer. NO PLAGIA.