GAINESVILLE, Fla. – In late August 30 years ago, Sadie Darnell was seen in news photographs and videos around the world.She was a Gainesville Police Department lieutenant who served as the agency spokeswoman when five college students were murdered and mutilated and was a daily presence in the news.Now, after losing her bid for a fourth full term as Alachua County sheriff, she joins more law enforcers from that time who are finishing their careers with deep memories of the crime and the role they played in finding and prosecuting the killer.At other anniversary points of this pivotal tragedy, the Gainesville community has gathered for vigils or services of commemoration.