Two Women, One Axe, and Zero Convictions

In 1977, Yale students Terri Jentz and Avra Goldman were cycling across the United States when they stopped to camp at a park in Oregon. While they slept, a man drove his truck over their tent and proceeded to attack both women with an axe. Though both women miraculously survived the brutal assault, the attacker was never identified, and the case remains unsolved. 

Sources: 
1) https://moonmagazine.org/terri-jentz-my-journey-to-justice-2014-02-01/3/
2) https://en.wikipedia.org/wiki/Strange_Piece_of_Paradise
3) https://statestories.com/the-harrowing-story-of-terri-jentz-the-19-year-old-who-caught-an-axe-blade-with-her-bare-hands-at-an-oregon-campsite/
4) https://www.npr.org/transcripts/5554692
5) https://bendbulletin.com/2007/07/22/ax-attack-survivor-author-tells-all/
6) https://www.nuggetnews.com/story/2007/07/31/news/author-returns-to-the-scene-of-the-crime/14728.html
7) https://www.seattletimes.com/entertainment/books/victim-returns-to-crime-scene-30-years-later-as-an-author/