There are new developments as the state's top court hears arguments in one of the most infamous cases in Central New York.

Heidi Allen disappeared in 1994 from a New Haven convenience store in Oswego County.

Gary Thibodeau was the only man convicted in connection with the crime.

He is currently serving a 25 year sentence for kidnapping.

Defense attorneys presented arguments for a new trial in the state's highest court Thursday.

They believe new evidence came to light in recent years, pointing to alternate suspects.

Thibodeau's attorney argued that the lower court abused its discretionary powers by not allowing that new evidence and witness testimony to be admitted.

Oswego County prosecutors continue to question that alleged evidence, and say the conviction should stand.

"The fact that a lie or an exaggeration is repeated multiple times doesn't make it inherently more reliable or admissible under the court," said Oswego County District Attorney Gregory Oakes.

"If a jury had heard the newly discovered evidence that had been presented to the lower court, Gary Thibodeau would be home with his family today,” said Defense Attorney Lisa Peebles.

Thibodeau continues to be in failing health, having been moved to hospice care in recent months.

The court is expected to give a decision in a couple of months.