The Connecticut Supreme Court has ruled in a love-triangle murder case that a state law protecting married couple's conversations as confidential doesn't apply to a convicted killer who protested the use of self-incriminating comments she made to her husband as evidence against her at trial.

Justices issued a 7-0 decision Thursday against Sheila Davalloo, who was convicted of murder for beating 32-year-old Anna-Lisa Raymundo and stabbing her nearly 20 times in her Stamford condominium in 2002.

Prosecutors said Davalloo killed Raymundo because she was in a sexual relationship with Raymundo's boyfriend and wanted him to herself.

Davalloo's husband testified that he lent her night-vision binoculars and eavesdropping devices. He said she had a lock-picking kit and practiced picking locks at home.