March 3, 2025
The Lake Bodom Murders
The most unsettling true-crime cases …
Trigger warning: Child murder, statutory sexual assault
Many true crime cases go unsolved for decades, and not all of them occur in the United States. The case we’re covering this week checks both of those boxes. Known as the Lake Bodom Murders, this case is intriguing for many reasons that will become evident later on. It involved four Finnish teenagers and took place at Lake Bodom in Espoo, Uusimaa, Finland, on Saturday, June 5, 1960. The teens, Maila Irmeli Björklund and Anja Tuulikki Mäki (both 15), Seppo Boisman (18), and Nils Gustafsson (18), set out for a romantic camping trip to Lake Bodom. They arrived at the lake around 5 p.m. on June 4 and settled down on a small peninsula that jutted out onto the lake. The teens then spent the rest of that day drinking, fishing, swimming, and relaxing before retreating into their single tent around 11 p.m.
As the sun rose up over the lake the next morning, two teenage boys, unrelated to the campers, were walking along the shore of Lake Bodom. At around 6 a.m., they heard a faint voice calling out and soon discovered a collapsed tent. Upon closer inspection, they noticed very large slash marks in multiple areas of the tent and two bodies lying outside the structure while two more were lying inside.
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They’d all appeared to be stabbed and bludgeoned to death. Just then, a body laying outside tent appeared to move its legs ever so slightly. The boys saw this but quickly had their attention redirected to a man running away from the tent and into the tree line. They couldn’t see his face but felt it was time to leave at that point, so they did. The boys later recounted that the man appeared to be an adult wearing a light blue-colored shirt with slicked-back blonde hair. As the day wore on and the lake became crowded, more people observed the tent. It wasn’t until a passing carpenter noticed it, realized something was very wrong, and rushed to a nearby construction site to notify law enforcement that the police would get involved.
Once they arrived at the scene, the police began what was an unsecured investigation. It led to multiple citizens and campers walking through the crime scene, effectively disturbing and destroying crucial evidence. To make things even more complicated, Nils Gustafsson had sustained horrific injuries, including a fractured skull, yet he was the only survivor. This forced police to consider him as the primary suspect for a time and press charges against him. However, they later re-examined the case while Nils was in custody and ruled out the idea that he could be the main suspect due to the severity of the injuries he’d sustained. Nils’ trial would ultimately end in an acquittal and “not guilty” verdict. To this day, many suspects have been considered … one of whom, a man by the name of Hans Assmann (see image), had a striking resemblance to a composite sketch created of the man seen running away from the tent. Yet nobody, other than Nils Gustafson has been formally identified or charged.
To learn more about this unsolved case, check out the Casefile True Crime podcast titled “Case 194: Lake Bodom,” available on Apple Podcasts, Spotify, and Amazon Music.
—Seth VanEss, True Crime Editor