Christopher Wells, Matthew Plake and Micah Woody appeared in court in Castle Rock on Friday to enter pleas.
The three are charged with murder and numerous other charges in the case.
Amara Wells and her brother-in-law Robert Rafferty were killed Feb. 23.
Wells, her estranged husband, is accused of offering $15,000 to have them killed.
Woody and Plake are accused of helping carry out the plot
(Copyright 2012 by The Associated Press. All Rights Reserved.)