On October 14, Sulli was found dead at her home in Seongnam-si, Gyeonggi-do by her manager.
Sulli's manager had gone to her home as he could not contact her.
The exact cause of her death still remains unknown, but police are currently seeing the likelihood of her taking her own life.
Following her death, it was revealed that she was suffering from depression.
Back in July 2014, Sulli went on hiatus after struggling with the malicious comments she received online.
About a year later, she officially withdrew from f(x) and turned her attention to acting.
She had always shown the bright side of herself; she smiled so beautifully at all times.
Many wish that Sulli is as happy as how she looked in the photos at a place where she is now.
(Credit= Online Community, 'jelly_jilli' Instagram, SBS, Mnet, KBS)