Jack and Jill Who is John Sampson from Jack and Jill and what is their importance? Asked by bookragstutor on 25 Oct 12:32 Last updated by Jill W on 26 Dec 13:22
John is Alex Cross's partner and fellow detective. He is described as a large, intimidating man, who looks out for his partner's psychological health. The two men have been best friends since they were boys.