In her biography of Walker and Jones, "Star-Crossed", author Beverly Linet quotes Walker's friend Jim Henaghan, who was not mentioned in official accounts of Walker's death, as saying that he was present at the time of the events leading to Walker's death. Henaghan, who was married to Gwen Verdon at the time, stated that he stopped by Walker's house, where they played cards, and Walker was behaving normally. Walker's psychiatrist arrived and insisted that he receive an injection. When Walker refused, Henaghan held him down in order for the physician to administer it. Walker soon lost consciousness, and frantic efforts to revive him failed.