On Sunday afternoon Lennie was in the barn thinking about how mad Gorge is going to be at him. In chapter 5 Lennie says "why do you got to get killed? You ain't so little as mice. I didn't bounce you hard," Lennie laid the dead pup in the hay stroking its fur when Curly's wife came in.
Curly's wife listens to Lennie talk about the little place that they are going to get. Lennie started to explain " We gonna have a little place. We gonna have a house an' a garden and a place for alfalfa, an' that alfalfa id for the rabbits."
Curly's wife let Lennie touch her hair because he liked to pet soft things. Lennies fingers got caught in her hair and she panicked which made Lennie do the same. Lennie tried to make her stop screaming and he broke her neck and killed her. He doesn't know what to do so he runs off to the spot Gorge told him to go to.
And we're going to get our own place
Old Candy was looking for Lennie in the barn when he found Curly's wife dead on the ground. He told Gorge first and then called everyone else in. Curly's kneels down with anger beside her. He accuses Gorge just to find out Lennie did it.
Carlson, Slim and a couple other men went with Curly to find Lennie and kill him. While they were doing this Gorge knew exactly where Lennie was and went the opposite way to find him.
Gorge finally finds Lennie and all that Lennia could do was apologize to Gorge for what he did. Lennie tells him its alright and he starts to tell Lennie about the house that they are going to get. About half way through his talk he pulls out Carlson's lugar and shoots Lennie in the head when hes not expecting it.