County police say they have a witness who saw Terry Lee Keefer with two men the night she disappeared, and they are hoping others who may also have seen the woman will come forth.
The witness, whom police did not identify, said she saw two men near Ms. Keefer's 1984 Toyota Tercel station wagon on Interstate 97 and a woman fitting Ms. Keefer's description in the car about midnight July 29, police said.
"We're hoping that someone else saw the same thing and we'll be able to verify" what the witness saw, said Sgt. Charles R. Blevins, an Anne Arundel County detective.
Mrs. Keefer's abandoned car was found just before dawn on I-97 a few miles from her home on Cogg Court in Millersville. Her decomposed body was found Sept. 7, near Route 216 in Howard County. The state medical examiner still has not determined the cause of her death.
Previously, police thought Ms. Keefer's husband, David A. Dicus, was the last person to see her alive. Police say Mr. Dicus told them he and his wife had quarreled before she left their home between midnight and 2 a.m. July 29.
He said his wife -- who suffered from mild depression and was taking medication -- told him she needed to take a drive to clear her head. When she did not return the next day, Mr. Dicus reported her missing, police said.