Mary Dalton’s death by asphyxiation is disclosed through Bigger’s later account of the event: after taking the intoxicated Mary to her room, he uses a pillow to silence her when fear of being discovered overwhelms him. His recollection presents the death as unintended, while making clear how his panic shaped the fatal act.

Circumstances and Disclosure

Bigger says Mary was drunk and had passed out, so he took her to her room. When she began trying to speak, Mrs. Dalton entered. Bigger identifies her as blind and says he feared being found in the room. The account thus places the killing amid a sudden interruption and Bigger’s fear of exposure, rather than describing a prior plan to kill Mary.

The Fatal Act

As Bigger recounts it, he put the edge of a pillow over Mary’s mouth and pressed it down to keep her from calling out. Mrs. Dalton did not touch him; Bigger says he moved out of her way. After she left, he returned to the bed and realized Mary had died. The sequence distinguishes his stated aim of silencing Mary from the consequence of that action, without making the consequence any less decisive.

Retrospective Meaning

Bigger insists that he did not mean to kill Mary and says he doubts anyone will believe him. His account gives the reader the circumstances he presents as an explanation, but it does not erase his responsibility for causing her death. The event’s later disclosure turns a hidden act into testimony, while the gap between his claim of unintended death and the irreversible outcome remains central.