I see WhiteOrchids beat me to it (thank you!). But in a very brief nutshell, she was 19. Her parents noticed a dramatic change in her behavior, and her Mom went to see her. Linnea was in her dorm room looking at sites about suicide and had an open bottle of ibuprofen (never in a million years did I think you could kill yourself with that stuff, but apparently you can... she didn't, but it sounds like she tried or thought about it). She went to a mental hospital and then was in outpatient treatment. At lunch break in outpatient she walked to the nearby American river and hung herself. I think she was probably deceased before her parents even realized she was missing.
Her Mom found her months later... she described it as a "pretty place," but I still have a very hard time getting over the horror her Mom must've felt seeing her partially decomposed daughter hanging in a tree. Linnea lived not that far from me, went to the same college I did, and the place she was last seen is really close to where I live, so I just connected with her immediately. She was rumored to have been seen all over the place, including near where husband and I go boating, so I was really looking for her. The family shared a video/tribute type thing of her and she seemed like such a sweet, friendly, sunny person, one of those people who is nearly always upbeat. It was the first time I finally understood how relatively common it is for mental illness to set in or show itself at around that age. (ETA for those interested here's the video:
www.youtube.com/watch?v=NbPRY5dBIc0. Grab Kleenex.)
I so, so hope for a better outcome in Bryce's case. I know we all do. The similarities keep nagging at me, but I keep hoping.