A man who pleaded guilty in the 1988 rape and murder of a woman in an Old Colorado City neighborhood alley when he was 15 was sentenced Wednesday to 60 years in prison. James A. Papol, 48, received the maximum penalty under a plea bargain in the slaying of 24-year-old Mary Lynn Vialpando, which remained among the region’s darkest unsolved crimes for three decades. Papol’s arrest came in 2018, when a routine DNA database search by Colorado Springs police matched him to semen found on her body. “What she went through is unspeakable,” said 4 th Judicial District Judge Robin Chittum. “It was a prolonged period of her being the focus of hate and rage and anger. And she struggled and she suffered and she fought back — holy cow.”