Ashton Kutcher, left, shown at the 2017 CMT Music Awards with Danny Masterson, wrote a letter in support of his co-star from “That ’70s Show” in a high-profile rape case. Masterson, 47, was sentenced to 30 years to life in prison by Los Angeles County Superior Court Judge Charlaine Olmedo on Thursday despite the pleas from his “That ’70s Show” …
