The case is expected to be the largest and most expensive trial in Marion County history. It could last four to six weeks.
The judge's primary concern is for jurors who know something about the case to still have the ability to be fair.
Jury selection begins Thursday for Mark Leonard's trial. He's charged with murder and arson.
Jury selection is scheduled for Thursday in Mark Leonard's trial.
Mark Leonard, his half-brother Bob Leonard, Jr., Monserrate Shirley, Gary Thompson and Glenn Hults are all charged in connection with the November 2012 house explosion.
Glenn Hults was charged with conspiracy to commit arson in connection with the explosion.
The decision came as Gary Thompson, 44, appeared in court Wednesday for the second time since his arrest in January.
"We are prepared to go to trial on June 4," said Marion County deputy prosecutor Denise Robinson.
Mark Leonard wants to prevent jurors from hearing any statements made to investigators by his brother, Bob Leonard, Jr.
Bob Leonard is accused, along with his brother Mark, Monserrate Shirley and Gary Thompson of setting the explosion at Richmond Hill in November 2012.