By Elizabeth Chuck, NBC News
Three decades have passed since Robert and Goldie Huntbach were found tied up and shot to death in their Waterloo, Iowa, home, and no suspects were ever arrested in the elderly couple's murders -- until this week, when one of them voluntarily walked into police headquarters and confessed.
"There were a lot of suspects at the time that we looked into," Waterloo police captain Tim Pillack, who was working for the department when the Jan. 12, 1981 double homicide happened, told msnbc.com. "We just were never able to get enough probable cause against somebody to make an arrest."
U.S. News - Three decades after double homicide, man allegedly walks into Iowa police station and confesses