Smith County judge sets Dr. Bobby Ray Nichols trial for Nov. 26.
Nichols, 76, a retired dentist, was booked into the Smith County Jail on a charge of murder on June 30, a few hours after he called 911 to report a shooting at the home shared with wife, Rosiland, 71, records show.
Authorities arriving at the couple's home, 3417 Allen Drive, found Nichols at the location, his wife dead in a front room of the house.
"There was an argument prior to the incident," Police Spokesman Don Martin said in July.
No one else was in the home at the time of the incident, authorities said.
Investigating officers responding to the emergency call described Nichols as cooperative, displaying no resistance to their arrival.
"Mrs. Nichols had an apparent gunshot wound," Tyler Police Sgt. D. Mike Saxion said in a written statement. "Dr. Nichols was detained at the scene and (was) interviewed by investigators."
In a report published in the Tyler Morning Telegraph on July 7, authorities said in a arrest affidavit that Nichols and his wife had argued about his staying gone every Friday, spending time drinking with friends.
Nichols was released on a $750,000 bond on July 3 from the Smith County Jail.