Complex sentence: Novelist Martin Amis was a cousin of the Wests' victim Lucy Partington, who disappeared in 1973; he dedicated his novel "The Information" (published in 1995) to her.
Split into simpler sentences: Novelist Martin Amis was a cousin of the Wests' victim Lucy Partington, who disappeared in 1973. He dedicated his novel "The Information" (published in 1995) to her.