In season one, seventeen year old Clay Jensen returns home from school one day to find a mysterious box on his porch. Inside he discovers seven cassette tapes recorded by Hannah Baker, his deceased classmate and unrequited love, who committed suicide two weeks earlier. On the tapes, Hannah unfolds an intensely emotional audio diary, detailing why she decided to end her life. It appears each person who receives this package of old - style tapes is fundamentally related to why she killed herself. Clay is not the first to receive the tapes, but there is implied detail as to how he should pass the tapes on after hearing them. There appears to be an order to distribution of the tapes, with an additional copy held by an overseer should the plan go awry. Each tape recording refers to a different person involved in Hannah 's life contributing to a reason for her suicide. The tapes refer to both friends and enemies.
who died in first season of 13 reasons why
Hannah Baker