A MARINA MAN IS BEING EVALUATED AFTER TRESPASSING AND CAUSING A SOLEDAD HOMEOWNER TO FIRE HIS GUN YESTERDAY (THURS) AFTERNOON.   JUST AFTER 3 P-M, MONTEREY COUNTY POLICE RECEIVED A 9-1-1 CALL FROM HOMEOWNER PAUL SULLIVAN REPORTING A SUSPICIOUS PERSON.  SULLIVAN SAID THE SUSPECT RAN AT HIM AFTER THE CALL, PROMPTING HIM TO FIRE ONE ROUND FROM HIS HANDGUN, WHICH MISSED HITTING THE TRESPASSER.    ARRIVING DEPUTIES DETERMINED THE SUSPECT, IDENTIFIED AS SEAN PATRICK CANAVAN, AS A DANGER TO HIMSELF AND OTHERS. CANAVAN WAS TRANSPORTED TO NATIVIDAD MEDICAL CENTER FOR MENTAL EVALUATION.