The federal grand jury met Tuesday in Oklahoma City, said Bob Troester, spokesman for the U.S. attorney's office. He said he could not comment on who or what the grand jury is investigating.
Oklahoma City police, meanwhile, continue to investigate Julie Mitchell's death. A state multicounty grand jury has been helping in the homicide investigation. The state grand jury meets again next week.
Her body was found in the master bedroom closet of her husband's $359,000 house in northwest Oklahoma City. The couple's 1-year-old daughter, London, was in a pool of blood next to the body. The girl was not harmed.
About $30,000 was missing from a closet safe, said Bobby Jackson, the attorney who represented Teddy Mitchell at the grand jury.
Teddy Mitchell was traveling to California when he learned of his wife's death, friends have said.
On Friday, Teddy Mitchell sued one friend, Edmond insurance agent Michael Thomas.
In the lawsuit, Teddy Mitchell said he loaned Thomas $20,000 last year but no payments have been made on the debt.
Thomas' attorney, Josh Welch, said Tuesday, “He maintains that he does not owe Teddy Mitchell any money. … Teddy Mitchell has been made whole and has been paid back more money than he's ever loaned Mike Thomas.”
Thomas last month was called before the multicounty grand jury but he refused to testify. Welch said then that Thomas “exercised his Fifth Amendment right not to answer any questions that would incriminate him” primarily because of “a federal investigation of allegations of gambling ... involving Mr. Mitchell.”
“There's no inference that you can draw as to a person's guilt based on their invocation of the Fifth Amendment,” Welch said.