Karina Holmer was a 20-year-old au pair from Sweden who ventured out into Boston on a Friday night and became the victim of a grisly murder that has haunted the city ever since.
It was June 21, 1996, and that Friday night Holmer went out dancing at Zanzibar, a popular nightclub at Boylston Place, also known as “The Alley,” next to Boston Common.
The Globe reported that Holmer was last seen alone around 3 a.m. Saturday near Boylston and Tremont Street, not far from the club…