For the first time, David Thomas’ version of events from the night Denise Bourdeau disappeared is known to the public.

Thomas has pleaded not guilty to second-degree murder in connection with the death of Bourdeau, who was last seen at a New Year’s party as 2006 turned into 2007.

Testifying at his trial Thursday was Const. Jeff Sauve, who was investigating Bourdeau’s disappearance and who was contacted by Thomas on Jan. 17, 2007 – two days after his on-again, off-again girlfriend was reported missing.

Sauve told the court that Thomas admitted at the time to having assaulted Bourdeau in the recent past – and been sent to prison for it – and that his parole officer had given him permission to resume his relationship with her.

Thomas also said, Sauve testified, that he was at the New Year’s party at the restaurant Jonathan's, with Bourdeau but did not leave the party with her.

Multiple witnesses have testified that Bourdeau and Thomas danced together at the party, although they arrived separately.

“After that he advised me there was heavy drinking,” Sauve testified.

“Denise was going to go with him, but she changed her mind as she was flirting with three other guys. (Thomas) then advised me they had a verbal argument.”

Thomas appeared nervous, Sauve testified, and said he understood why police might be interested in him – but claimed he had nothing to do with her disappearance.

“He stated ‘I’m going bonkers man, I like this little girl and I’m missing her,’” Sauve said.

Bourdeau’s body was found in the spring of 2007, along the banks of the Grand River.

No charges were laid in her death until 2011, when Thomas was arrested.