The definition of hearsay is "an out of court statement offered into evidence to prove the truth of the matter asserted."  An example of hearsay would be if witness x testifies that someone else said that they saw you at the crime scene.  What you have described does not sound like hearsay.  Rather, it sounds like you have a co-defendant placing you at the scene of the murder.  This is a very serious matter.  Although you point out some potential weaknesses with respect to the state's case, it is possible that you could be convicted based upon a witness identification.  Therefore, I strongly suggest that you consult with and/or retain an experienced criminal defense attorney in North Miami, FL, immediately in the interest of formulating the best possible defense.