Kerry Aileen O’brien-krueger, 31, was last seen leaving her Burlington, Wisconsin home on North Perkins Boulevard at about 4:30 a.m. on December 6, 1989, according to her husband, Tracey Krueger, who said she was driving to Chicago with a male co-worker to catch a flight for a business trip to Wyoming. A neighbor later reported an unfamiliar black car parked outside the house around that time but did not see anyone enter it.

That account fell apart the same day when a Gander Mountain colleague phoned and discovered there was no trade show in Wyoming and no employees scheduled to travel. Kerry’s luggage, makeup, identification and other personal items were left at home. Friends said she rarely left Burlington and had been struggling with a mysterious illness and a strained marriage; she had discussed divorce. Tracey’s polygraph in January 1990 was inconclusive; he was later hospitalized and had a stroke that he said affected his memory. The original master mattress was replaced after Kerry vanished and the old mattress was never found.

Did anyone in Burlington or the surrounding area have contact with Kerry in the days before December 6, 1989, or recall seeing an unfamiliar black car that morning?