A Douglas County Judge found Shanna Golyar guilty Wednesday morning in the love triangle murder of romantic rival Cari Farver five years ago.
The 37-year-old Farver hasn't been seen or heard from since November 2012 and her body has never been found.
Judge Timothy Burns called the murder "a twisted plot of lies, deceit and impersonation" as he announced the guilty verdict.
Prosecutors said Golyar killed Farver after she learned that they both dated the same man and then posed as Farver online for several years to cover up the murder.
Golyar will be sentenced in August.