Webstate authorities identified the woman as sandra young, a teenager from portland who went missing between 1968 and 1969. Her identity was discovered through. Webfor someone new to the genre of unsolved mysteries, missing persons, true crime, etc: Weblearn about the mysterious disappearances of jennifer kesse, jimmy hoffa, maura murray, and other cases that have baffled investigators for years. See if you can crack the code. Webthis article looks at 10 unsolved missing persons cases that still stump detectives and worry families. We’ll dive into the eerie details of these cases. They leave us wondering. Webthe fbi compiled a list of 43 active missing persons cases of people under the age of 21 that the agency says need fresh leads. Some date back decades.