Arnold reportedly showed little emotion when the jury's verdict was read less than 24 hours after the panel began its deliberations. But she began sobbing, along with several supporters, as deputies led her out of the courtroom.
The second phase of the trial, Arnold's second after the first ended in mistrial, gets started Tuesday.
Montgomery County Common Pleas Judge Mary Wiseman will eventually sentence Arnold, but cannot send her to death row without a jury recommendation. However, Wiseman could reject a death recommendation and instead impose a prison sentence.