Joseph Grasher was 21 when he disappeared after a birthday party in Manhattan, Kansas on August 22, 1981. He left the gathering on Poyntz Avenue in a red van with Stephen Hammerle and two other people; neither Grasher, Hammerle nor the van have ever been found. Reports say the party atmosphere was tense and that Hammerle had a confrontation with someone that night. Some accounts allege Grasher and Hammerle were taken from the party at knifepoint by two men who later returned without them and said they had dropped them off at a store.

The Riley County Police Department classifies the case as an endangered missing persons case with suspected homicide, and volunteer groups and online communities have mounted searches and kept the case in public view.

Did anyone at that 1981 Poyntz Avenue party or anyone who rode in that red van ever come forward with information? If so, please share what is known.