Death of an englishman (end), Arnau Llambrich

Hello, I'm Arnau and I'm reading "Death of an englishman". Last week I finished the boo and the end of the book is to strange. In the end of the book the murder of the englishman, Langley Smith, is Cipolla, one man that work cleaning the road; Cipolla's wife was working, because now is death, cleaning Langley's house because one neighbor of the englishman contract she to clean Langley's house. When the month ended Mr. Smith decided that he won't pay Cipolla's wife and Cipolla got angry. One day Cipolla was drunk and decided to visit the englishman, when he was talking with Langley he caught a gun and shoot him. At the end of the book Cipolla explains this history to the inspector and it's taked to the jail.