Update: The jury could not reach a verdict in the case of an ex-Knox County Sheriff's Office Lieutenant charged with raping a child.

The trial for Dennis Mills, Jr. started a week ago in Knox County. The jury got the case Monday afternoon and began deliberations.

The jury returned to the courtroom Tuesday afternoon to inform the judge they could not reach a unanimous verdict. Judge Scott Green declared a mistrial.

Prosecutors will make the decision whether to take the case to trial once again.

Original story

Testimony is underway in the trial of a former Knox County Sheriff's Office Lieutenant charged with child rape. 

Dennis Mills Jr. was arrested in April 2014 on seven counts of raping a child and rape by an authority figure. 

Court documents at the time showed the abuse had lasted for a year, before the child victim came forward. 

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Records show Mills started in corrections at the Knox County jail and worked his way up to patrol. In 2000, he worked on the juvenile crime task force- a unit that investigates and arrests adults accused of abusing children. The unit also works with children to reduce the number of juvenile crimes.

At the time of his arrest and termination in April 2014, Mills was a Lieutenant in the Warrants division. 

Jury selection began on Monday, and the panel was finally seated on Tuesday. Testimony began Tuesday afternoon.