A Lebanon man charged in the murders of his in-laws pleaded not guilty to the charges in a Wilson County courtroom Tuesday morning.
Richard Parker, 49, is accused of delivering a package with an explosive device inside to the home of his wife's parents, Jon and Marion Setzer, last Monday, February 10.
Jon, 74, was killed instantly when the package exploded. His wife Marion, 72, died of her injuries two days later at Vanderbilt University Medical Center.
Investigators combed through debris for three days after the blast before Parker was taken into custody.
He is charged with two counts each of first degree murder and premeditated murder.
Parker appeared briefly in court for his arraignment Tuesday morning.
He said he did not have an attorney because he could not afford one.
The judge appointed a public defender who entered a not guilty plea on Parker's behalf.
Parker will remain behind bars on $1 million bond.
He is next scheduled to appear in court April 8 at 9 a.m.
The judge in the case says he wants to move the case along quickly and ordered prosecutors to expedite sharing information with the defense so they could begin preparing their case.
Investigators have not released a motive for the bombing.
They said the investigation is ongoing and more charges are possible.
It did not appear that anyone from Parker's family was in court Tuesday.
The funeral for Jon and Marion Setzer will be held Saturday at Noon at the First Church of the Nazarene in Nashville.
The following are mugshots of individuals arrested in May by local authorities in Northeast Tennessee.
441 Murfreesboro Road Nashville, TN 37210