>> no. >> reporter: nor had we, until "20/20" sat down with bruce stimon's wife of 22 years, mrs. or many, many months. that was the betrayal and was the thing that hurt the most. >> reporter: she and her husband have a 13-year-old son. she's a school librarian, now a single mom raising that son all alone back in their idyllic, small new hampshire town. authorities have been watching her husband across two states, and she is talking about the case now because she says no one has paid any attention to the terror he inflicted on his own >> i think throughout this whole thing, it really has never been apparent that bruce had a family. there was never any indication that he was a married man with a child. we're victims too. >> reporter: kathleen stimon says during those months, she had no idea what her husband, bruce was doing on those business trips to washington, d.c., his time spent in arlington, virginia. nor did she know what was about to unfold on that fateful night that authorities were waiting for him. >> bruce didn't come home. he said he was going on an appointment in massach