Hikuc, The Revenant
Hikuc's death hit everyone right where it hurt the most. When there was nobody else there for Huge Glass (Leonardo DiCaprio), Hakuk was there. When Hakuk needed Hugh Glass the most, he was unable to come to assist.
Neil Perry, Dead Poets Society
Neil's death was very scary and unfortunately more common than one would think. when controlling parents try to butt themselves too far into his life, Neil commits suicide. Neil's story is true for many unfortunate souls who felt the need for a way out. Never hesitate to reach out if you feel that way, there are tons of resources available to help you.