BULLHEAD CITY – An elderly Mohave Valley man convicted of engaging in sexual relations with his former girlfriend’s pre-teen daughter has been given a 20-year prison term. Judge Billy Sipe ordered the double decade incarceration for Dennis McDaniel, 68, during a Friday sentencing hearing. A Mohave County Superior Court jury acquitted McDaniel of one count while convicting him of another sexual conduct with a minor charge at the conclusion of trial on Sept. 8. The victim who is now 17 testified at trial that McDaniel began taking advantage of her when she was 11 years old after she and her…