It is not “that person died their hair.” They did not past-tense kill their own hair. Hair is inanimate; that’s not how it works, people. Correctly, it’s “that person dyed their hair,” as in the person used a form of colouring to dye their hair. 

This has been a English Nerd PSA.

1. marthaji02 liked this
2. ohcrackohcrack said: really don’t see how this is hard to understand haha
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