Crime Alert, I'm Nancy Grace, breaking crime news now.

Fashion designer Martha Nolan Ossatteras, COD, cause of death.

Overdose.

But wait a minute.

The investigation is not over yet.

Her family's not buying it, and they're calling for a second autopsy.

What about it, John Limley?

Nancy authorities on Long Island are

investigating the mysterious death of New York fashion designer Martha Nolan, an Irish native

whose body was discovered aboard a 54-foot yacht in Montauk on August 5th. Police say Nolan, founder of a

boutique clothing line, was found unresponsive

around midnight at the Montauk Yacht Club. Bystanders attempted CPR, but first responders

pronounced her dead at the scene. An autopsy conducted the next day revealed no signs of violence.

Suffolk County officials say the final cause of death is pending further investigation, with

toxicology results still outstanding.

A second autopsy may also be conducted at the request of her family before her remains

are returned to Ireland.

Homicide detectives have met with Nolan's relatives represented by attorney Arthur Idala.

He disputes speculation that a drug overdose was involved and says the family is waiting for a full accounting from investigators.

Police confirm they are conducting a broad inquiry, including what they call a technological analysis of Nolan's communications.

Retired NYPD Sergeant Joseph Jacqueline told our friends with CBS News that while no evidence of foul play has been reported,

every unexplained death should be treated as suspicious until toxicology

...