Complex sentence: During 1978, in Florida, he made the acquaintance of Ottis Toole and his 11 year old niece Frieda Powell (known as Becky) in 1978, she Lucas's began having sex with her when she was 12.
Split into simpler sentences: During 1978, in Florida, he made the acquaintance of Ottis Toole and his 11 year old niece Frieda Powell (known as Becky). Lucas began having sex with her when she was 12.