US dentist indicted in wife's murder two years after she was found dead beneath broken third-floor window

• Roger Desilets faces manslaughter and assault charges
• Couple had two fights on the night Kathleen Desilets was in fatal fall
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A Princeton dentist was indicted by a grand jury on Friday in the death of his wife whose body was found beneath a broken third-floor window. 

Roger Desilets faces manslaughter and assault charges over the death of Kathleen, 65, who died in December 2011. 

The jury heard that the dentist had dried blood marks on his face allegedly from where his wife had fought him.

Indictment: Roger Desilets is facing manslaughter charges over the death of his wife, Kathleen

Desilets, 69, told police he and his wife had been fighting since she discovered months earlier that he had been having affair, 7 News reported. 

On the night of her death, the couple had fought twice, including one argument when she found out the dentist had been tracking her calls to see if she was also having an affair, according to testimony.

Defence attorney Edward Ryan Jr claimed that when Mrs Desilets found the phone records 'she came downstairs and physically attacked him and gouged his face and broke his glasses'.

The couple, who had been married for 44 years, are said to have then made up but a second row began when Desilets made a sexually demeaning comment, the affidavit claimed.

After a second argument, Mrs Desilets is said to have gone to a separate bedroom, where her husband walked in to find her breaking the window with a chair. 

'He then stated his wife went through the window, possibly intentionally or due to her momentum caused by the action of breaking the window,' a search warrant seen by the Sentinel and Enterprise said.

Fall: Kathleen Desilets was found underneath a broken third-floor window in December 2011

Mrs Desilets was found outside the couple's large home at about 3am on December 6, 2011. She was naked and had been covered with blankets. 

When police arrived she was still alive but unable to move or speak, and had difficulty breathing.

She died from ‘blunt trauma of the torso with laceration of heart and fractures of ribs and spine’ according to the state medical examiner’s office.

Mr Ryan described the grand jury indictment as a tragedy. 

He told the Telegram: 'We are very disappointed that Dr Desilets has been indicted in this matter. Dr Desilets had absolutely no role in his wife's tragic death and this indictment represents yet another tragedy in this very sad episode.'

Desilets is due to be arraigned on January 2.