CASTLE ROCK, Colo. (KRDO) -- A Colorado man has been sentenced to 24 years to life in prison after allegedly sexually assaulting his intellectually disabled stepdaughter. 65-year-old George Robert Gipson was found guilty on multiple counts of sexual assault of an at-risk person and sexual contact of an at-risk person, according to the 23rd Judicial District Attorney’s Office (DA). The DA details in a press release that Gipson was arrested in 202…