Lori Vallow pleaded not guilty to all charges during an arraignment hearing Tuesday.
Vallow remained silent during the judge's ask for her plea, which, by default, is entered as not guilty.
She was transferred from the Idaho Department of Health and Welfare. Vallow is currently in custody at Madison County Jail in Rexburg, Idaho.
ABC15 talked to JJ's grandfather, Larry Woodcock, earlier in April. He said he has serious doubts that Lori was ever mentally incompetent to stand trial.
"She knows how to play the system, and she's good at it," said Woodcock. "Well, hopefully, the day of reckoning has somewhat come into reality to her because she's going to have to answer for four murders.