According to the Aspen Daily News, the two men invoked their right against self-incrimination in a lawsuit filed by the family's relatives.
All of the criminal charges were dismissed against county employee Brian Pawl and former Aspen building inspector Erik Peltonen because the statute of limitations had expired.
The men faced felony and misdemeanor charges in the deaths of Caroline Lofgren, 42; her husband, Parker, 39; and their two children, Owen, 10, and Sophie, 8.
(Copyright 2012 by The Associated Press. All Rights Reserved.)