A California jury has found a former Marine guilty of murdering Oak Ridge native Erin Corwin.

Christopher Lee, 27, was found guilty of one felony count of first degree murder with juror finding true a sentencing enhancement of intentionally killing the victim by "means of lying in wait."

During the trial, Christopher Lee testified that he did in fact kill his 19-year-old lover before putting her body in a 140-foot mine shaft in Joshua Tree National Park.

But Lee claimed he strangled Erin Corwin during a fit of anger and because he said he suspected Corwin molested his daughter.

RELATED: Former Marine admits killing Oak Ridge native Erin Corwin

Corwin’s body was found seven weeks later by a rescue team.

“This was a terrible crime that showed absolutely no regard for the value of human life,” District Attorney Mike Ramos said. “Erin Corwin was just a young girl with her entire life ahead of her. And now, all that’s left is her memory. While justice was served today, it can only be a small consolation to her family and friends who will have to suffer a lifetime of pain knowing she died such a senseless death.”

Lee will be sentenced November 29. The prosecutor said he faces Life Without the Possibility of Parole.