This Man Married Cape Cod's 'Lady Of The Dunes'. MA Police Want To Know More

PROVINCETOWN, MA — The Federal Bureau of Investigation unveiled the identity of Provincetown's "Lady of the Dunes" murder victim earlier this week. On Wednesday evening, the Massachusetts State Police announced they're seeking information about a man that Ruth Marie Terry married just months before her murder.

"As part of our ongoing investigation into the homicide of Ruth Marie Terry, the Massachusetts State Police, the Cape & Islands District Attorney’s Office, and the Provincetown Police Department are seeking information about a man whom we believe she married several months before her body was found in the Provincetown dunes," officials said in a statement.

That person is identified as Guy Rockwell Muldavin, who was born on Oct. 27, 1923, who was a white man. Muldavin, who is dead, was also known to use the names of Raoul Guy Rockwell and Guy Muldavin Rockwell.

State police officials are specifically looking for information regarding Terry and Muldavin's whereabouts in 1973 and 1974 in the New England area. The two are believed to have been married in February 1974.

State police officials also released additional names that Ruth Terry was known by, which include Terri Marie Vizina, Terry M. Vizina and Terri Shannon.

"We are asking that anyone with information about Ms. Terry or Muldavin contact us at the phone number or email listed on the poster," officials said.

A poster with additional information and photos of Muldavin is included here:

What We Know About The "Lady Of The Dunes"

Ruth Marie Terry, of Tennesse, was revealed as the victim of the gruesome 1974 murder at Race Point Beach in Provincetown, according to a news release. She was 37 at the time of her death.

The FBI identified Terry using investigative genealogy, “a unique method that can generate new leads for unsolved homicides, as well as help identify unknown victims,” the agency said.

According to a case profile on the Provincetown website, the NAME was discovered in the dunes about a mile from the Race Point ranger station on July 26, 1974. Investigations determined that the cause of death was a "blow to the head," which they believe occurred weeks before her body was discovered.

The profile continues:

"The unidentified woman's hands were missing, presumably removed by the killer so she could not be identified through fingerprints and her head was nearly severed from her body with an instrument similar to a military entrenching tool. The left side of her skull had been crushed. No weapon was found at the crime scene. Her nude body was discovered lying on a beach towel with her head resting on folded jeans. There was no sign of a struggle and the woman lay on half the towel, as if she'd been sharing it with a companion."

Terry’s body was exhumed in 2000 in hopes that it would help investigators confirm the woman's identity. In 2010, the National Center for Missing and Exploited Children and the Smithsonian Institution created a new composite of the victim.

Investigators have taken another step today, officials said.

“This is, without a doubt, a major break in the investigation that will, hopefully, bring all of us closer to identifying her killer,” said FBI Boston Special Agent in Charge Joseph Bonavolonta.

“Earlier this morning, FBI special agents and victim specialists, along with Troopers from the Massachusetts State Police delivered the news to the victim’s family, and we would like to ask all of you to respect their privacy at this time.”

In addition to Tennessee, investigators believe Terry had ties to California, Massachusetts and Michigan.