Mary Ann Knightly was 28 when she was last seen at her Bear, Delaware, home in the 1500 block of Du Pont Highway on February 18, 1998, at about 11:30 p.m. Her husband, Roy Knightly, was the last person known to have seen her; he told police she packed a bag and said she needed to get away for a while, intending to visit her sister in Florida. Roy said he fell asleep and woke at 1:30 a.m. to find her gone.

Mary Ann never arrived at her sister’s. That night she had borrowed a van from her mother and promised to return it the next day; Roy returned the van, saying Mary Ann asked him to do so. It is unclear how she planned to travel to Florida or how much money she had. Her mother reported her missing on February 26, 1998. Authorities say Mary Ann had previously left home for short periods without telling anyone, but foul play is suspected. Roy Knightly was named a person of interest and was never cleared of suspicion. The disappearance remains unsolved.

Does anyone who knew Mary Ann or who was in the Bear area around February 18, 1998 have information that could help explain what happened?