Authorities have little information about the victim. In his letter, Jesperson claimed that he met her at truck stop in Corning and gave her a ride. In Williams, they had sex and he strangled her, before driving on toward Gilroy.

Along the way, he stopped at the Pacheco Pass on Highway 152, and tossed her body off the berm. In doing so, he dropped his black and yellow flashlight, which authorities later found.