Louisiana drifter Danny Harold Rolling was formally charged with murder in the August 1990 killing of five Gainesville, Fla., college students, and entered a plea of "not guilty."

Circuit Judge Stan Morris read the charges Tuesday in a tiny courtroom at the Florida State Prison, where Rolling already is serving five life terms for a spate of armed robberies.Rick Parker, the assistant public defender representing Rolling, said Rolling understands he could die in the electric chair if he is convicted.