BRUTUS INTENTIONALLY STABS CAESAR IN THE LEG WITH A SWORD. CAESAR IS HOSPITALIZED FOR THE WOUND. WHILE HE IS IN THE HOSPITAL AND WEAK FROM SURGERY, MARC ANTONY ENTERS AND STABS THE EMPEROR THROUGH THE HEART. IS BRUTUS GUILTY OF HOMICIDE, BECAUSE CAESAR WOULD NOT HAVE BEEN VULNERABLE TO MARC ANTONY "BUT FOR" BRUTUS' INITIAL ATTACK?