DELAWARE, Ohio (WCMH)–A Delaware County jury was unable to decide if a former chess teacher is guilty of gross sexual imposition.

A crowd of supporters gathered at the Delaware County Courthouse Monday to back 62-year-old F. Leon Wilson. The former chess coach was charged with three counts of gross sexual imposition after two separate incidents last year.

Both sides rested their case Friday, but Monday the jury still could not agree if he was innocent or guilty.

Four days after he took the stand in his own defense, Wilson left the Delaware County Courthouse a free man.

“They went through everything and they could not reach a unanimous verdict that Mr. Wilson did this,” said Wilson’s defense attorney Brad Koffel.

Wilson was on trial for allegedly touching two of his chess students Inappropriately. One was four years old, the other seven, both girls.

Wilson is a long time chess instructor who often coached championship players.

Ann Mandic’s daughter is a former student.

“I just am really disappointed that he wasn’t acquitted today, especially after taking an passing a polygraph test,” she said.

Video interviews of the two little girls were part of the four-day trial, along with testimony from their parents, the Delaware Co. Sheriff’s Investigator and medical experts for both the prosecution and defense.

Monday nearly a dozen supporters gathered to back Wilson.

But the 12-person jury still could not reach a unanimous decision.

“Didn’t happen. I’ve done what I could do. I’ve done everything from the science on. So no, this is not a vindication at all,” says Wilson.

The prosecutors in this case did not want to speak to NBC4 on camera. But they have not yet decided if they will try this case again.

For now, Wilson will continue to wear his electronic monitoring bracelet.