GREEN BAY — Court documents recently unsealed show that authorities are investigating the 1998 disappearance of a University of Wisconsin, Green Bay student as a murder.



The documents, obtained by WBAY-TV and the Green Bay Press-Gazette, also name a potential person of interest in the disappearance of Amber Wilde and a possible motive.



Wilde was 19 and pregnant at the time of her disappearance. According to court documents, the father of her child was upset and wanted Wilde to have an abortion, but she refused.



The Associated Press is not naming the man because he has not been charged. The documents include a subpoena and affidavit for his cell phone records. The documents also classify the case as a first degree intentional homicide investigation. The case had previously been considered a missing person.