On the morning of October 4, 1998, the partially nude body of 30-year-old Hispanic woman Mary Ellen Martinez was found in the bed of a 1971 brown and green Ford pickup truck in San Antonio, Texas. She had borrowed the truck from a friend. Authorities determined she had been fatally stabbed, and the state in which her body was found indicated a violent encounter.

Investigators conducted interviews, collected evidence, and canvassed the area, but the case produced no immediate leads or eyewitnesses and eventually grew cold. No arrests have been announced, and the San Antonio Police Department continues to seek information that could identify and apprehend whoever killed Mary Ellen.

Did anyone in San Antonio in early October 1998 see that Ford pickup or notice anything unusual around October 4 that might help this case?