WORCESTER — A Worcester dentist charged with killing his wife, whose body was found outside below a smashed third-floor window of their Princeton home, was freed on $5,000 bail Thursday after he pleaded not guilty.
Roger Desilets Jr., 69, was indicted last month on charges of manslaughter and assault and battery in the death of Kathleen Desilets, 65, in December 2011.
Roger Desilets told investigators that he and his wife had an argument about his extramarital affair and that she went upstairs to the bedroom and smashed the window with a chair before either falling or jumping out.
Kathleen Desilets died of blunt trauma of the torso with a laceration of the heart and fractures of the ribs and spine, according to her death certificate. She also had bruises on her arms and legs and a bump on her head, court documents show.
Prosecutors have not discussed the case or said what led them to charge the dentist with manslaughter.
Roger Desilets’ lawyer, Edward Ryan Jr., said he has not been told on what basis his client was charged, and that was not discussed in court.
‘‘I have no idea what they allege my client did,’’ Ryan said. ‘‘I do know that on this tragic night, Roger Desilets had nothing to do with his wife’s demise. We’re confident at trial he will be vindicated completely.’’
Toxicology tests confirmed that Kathleen Desilets had been drinking and took Valium shortly before her death, Ryan said.
The couple was married for 44 years.
Roger Desilets is due back in court on Feb. 5.