The Door County Sheriff's Department continues to investigate an accident that killed a 21-year-old California man early Sunday morning. Leonel Ramirez, Jr. of San Joaquin, Calif. was traveling near the intersection of Waters End Road and Hillside Road when his car entered a ditch and struck a tree. Ramirez was the lone person in the vehicle and died at the scene of the crash. The results of an autopsy conducted by the Brown County Medical Examiner's Office are still pending.