Karina Holmer was 20 years old when she came to Massachusetts from Sweden in 1996, hoping to work, travel, and prove she could make her own way. Three months later, after a Midsummer night out at Zanzibar in downtown Boston, she vanished into a few unexplained hours that investigators still cannot fully reconstruct. In this episode of Under the Pines, we go beyond “the Swedish nanny” and remember Karina as a person first: one of four sisters, a young woman who studied the restaurant business, cared for two children in Dover, spent weekends with other au pairs in Boston, and was thinking about returning home to Sweden later that summer. Karina was last reliably seen in the early morning of June 22, 1996. The next day, part of her remains were found behind 1091 Boylston Street. Her lower remains have never been recovered, the location where she was killed has never been identified, and no one has been charged. Thirty years later, the case remains active. We examine the verified timeline, the unexplained letter Karina sent home, the uncertain later sightings, the missing crime scene, the investigation, and the theories that have followed the case for decades, while keeping the daughter, sister, friend, caregiver, and young traveler at the center of the story. Sources: 1996 Unsolved Homicides - Boston Police Department The murder of Karina Holmer remains unsolved 30 years later; police asking public for help - The Boston Globe The murder of Karina Holmer remains unsolved 30 years later; police asking public for help - Boston.comhttps://www.boston.com/news/the-boston-globe/2026/07/07/the-murder-of-karina-holmer-remains-unsolved-30-years-later-police-asking-public-for-help/ Who killed Karina Holmer? Twenty-five years later, Swedish nanny’s grisly murder remains unsolved - The Boston Globehttps://www.bostonglobe.com/2021/06/22/metro/who-killed-karina-holmer-twenty-five-years-later-swedish-nannys-grisly-murder-remains-unsolved/ Remembering Karina Holmer By Name, Not Just By The Crime That Killed Her - GBHhttps://www.wgbh.org/news/local/2019-06-24/remembering-karina-holmer-by-name-not-just-by-the-crime-that-killed-her Decades later, few clues in Swedish nanny case - Massachusetts Lawyers Weeklyhttps://masslawyersweekly.com/2020/01/23/decades-later-few-clues-in-swedish-nanny-case/ Who Killed Karina Holmer?https://whokilledkarinaholmer.com/ Victim regarded as upbeat, good with children - The Boston Globe, June 26, 1996 Dover-based employer questioned; police trace events at loft, nightclub - The Boston Globe, June 26, 1996 Additional archival reporting: The Patriot Ledger, Associated Press, and United Press International, June 1996, accessed through Newspapers.com. #KarinaHolmer #BostonTrueCrime #UnsolvedMurder #ColdCase #TrueCrimePodcast