Investigators are still waiting for autopsy results from the state medical examiner before determining a cause of death for Rita Hubbard, the 43-year-old Gloucester woman found floating in Gloucester Harbor last week.

Authorities have said they do not have any reason to suspect that foul play contributed to Hubbard's death but are still interviewing local residents and people who knew her.

Although few details have emerged of Hubbard's life, a spokesman for Essex County District Attorney Jonathan Blodgett yesterday confirmed that she was the alleged victim in a 2007 attempted-murder case against her then-boyfriend.

Hubbard told Danvers police in May 2007 that the boyfriend, Kevin Michaud of Salem, tried to push her out of a moving sport utility vehicle on Route 1 and hit her in the head with a flashlight.

The charges against Michaud, who was arrested and held for nearly a week, were dismissed when Hubbard refused to testify against him and invoked her Fifth Amendment right against self-incrimination.

When she moved to Gloucester, Hubbard lived at 73 Eastern Point Blvd., a gray stone building in the exclusive enclave, owned by the Albert Kenrick Trust, of Fort Lauderdale, Fla.

Police have not said whether Hubbard had a job, and it is not clear if she rented the residence, which has an assessed value of $2.5 million, or how she paid for it.

Hubbard, originally from Weymouth, has two children who do not live in Gloucester, and an ex-husband in Beverly who identified her body Friday.

Hubbard's body was discovered floating just off the rocks in front of the Beauport Museum, which is just a few doors away from 73 Eastern Point Blvd. There were no visible signs of trauma on the body, according to police.

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