In a Florida State University Shooting: Deputy’s Son Kills 2 And Injures 5 in Campus Tragedy. In a gut-wrenching tragedy at Florida State University (FSU) on Thursday, a 20-year-old student, Deputy’s Son opened fire injuring at least five and killing two people near the student union. Later, the shooter, was identified as Phoenix Ikner, who was the son of a long-serving Leon County Sheriff's deputy. During the attack Phoenix Ikner used his mother’s former service weapon.