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- Toby Jay Wadenah (The Pledge), shoots himself in the head
- Justice Lawrence Wargrave, (And Then There Were None by Agatha Christie), self-inflicted gunshot wound to the head after murdering nine people on an island
- Harry Waters (In Bruges), self-inflicted gunshot wound to the head after accidentally killing a dwarf that he then mistakes for a child.
- Werther, in The Sorrows of Young Werther by Goethe and the subsequent opera by Massenet; gunshot to the head; the fictional suicide touched off a wave of copycat suicides in Europe
- Eli Wickner (One False Move), gunshot in the mouth.
- Dallas "Dally" Winston (The Outsiders by S.E. Hinton), suicide by police after robbing a grocery store.
- Sid Worley (An Officer and a Gentleman), hangs himself.
Read more about this topic: List Of Suicides In Fiction