Disappearance of Florida mother still a mystery nearly four decades later

Christine Hill best were given to spend 10 years of her lifestyles along with her mom.

“That’s all I had along with her. Ten years,” Christine advised Dateline. “And I thank God for each and every certainly one of them.”

Christine used to be best 10 years outdated when her mom disappeared in 1981. Christine, her Eight-year-old brother, their mom, Diana Lynn Harris, all moved right down to the Florida Keys from Michigan with Diana’s boyfriend previous that 12 months for a brand new get started.

“She misplaced her activity in Michigan, so simply determined to take a chance and transfer to Florida,” Christine mentioned. “She deliberate on creating a lifestyles down there for all folks.”

Diana landed two jobs: on the No Identify Pub and on the Sugarloaf Resort. Christine advised Dateline that her mom’s boyfriend didn’t stick round for lengthy, and Diana quickly started courting some other guy named Gary Argenzio.

Christine mentioned she recollects fortuitously exchanging their chilly days in Michigan for the nice and cozy seashores of Florida – in particular Giant Pine Key the place they settled. It used to be paradise.

However after 3 months in paradise, Christine and her brother have been despatched again to Michigan to spend the summer time with their father and different kinfolk.

They mentioned good-bye to their mom on the airport in Miami on June 7, 1981.

“It used to be the closing time I ever noticed her,” Christine mentioned. She added that the closing time she spoke to her mom used to be on July 15 once they talked at the telephone.

“She referred to as us frequently,” Christine mentioned. “So when she stopped calling, and after we couldn’t get in contact along with her, we knew one thing used to be mistaken.”

Diana used to be scheduled to pick out the kids up in Michigan on August 15 so they may then pass attend her sister’s marriage ceremony in Illinois.

She by no means made it.

Christine’s grandmother filed a lacking individuals record in Monroe County, Florida. However 39 years later, Diana nonetheless has no longer been discovered.

After their mom’s disappearance, Christine and her brother stayed in Michigan and have been raised via their grandmother. When Christine grew to become 17, she returned to Florida for a little while to start out her personal investigation. She’s been at it ever since.

“Some knowledge I’ve come throughout leads me to imagine that my mom could have turn into a danger to a significant drug operation at a celebration space on Giant Pine Key the place my mother lived,” Christine mentioned.

She added that when they have been despatched again to Michigan, her mom and Gary Argenzio moved right into a space on Tortuga Lane in Giant Pine Key identified via locals because the “celebration space.” The home used to be owned via certainly one of Argenzio’s pals, who used to be additionally an area lawyer.

Christine mentioned she later discovered that Diana had referred to as a pal in Michigan and mentioned she feared there used to be going to be a drug bust on the celebration space. It’s unknown when this name happened.

For years, Diana’s case went chilly. It wasn’t till 1995, at Christine’s urging, that Diana’s case used to be introduced again into the sunshine.

Detective Sergeant Barney Sajdak with the Monroe County Sheriff’s Administrative center advised Dateline that their data on Diana’s case best date again to 1995. He mentioned that the studies notice that Diana used to be reported lacking in 1981, however that there used to be no reliable record.

He showed that Diana’s case used to be re-investigated in 1995 as a imaginable murder and that many of us have been interviewed, together with Diana’s boyfriend, Gary Argenzio, however nobody used to be arrested in her disappearance.

Detective Sergeant Sajdak advised Dateline that the record integrated police interviews with two males who knew Argenzio. They advised detectives they believed Argenzio murdered Diana and dumped her frame within the ocean.

In a while after Diana’s disappearance, Gary Argenzio stole a ship and fled to Mexico the place he stayed till he used to be arrested in 1982 for robbery, consistent with Det. Sgt. Sajdak. He used to be sentenced to 5 years in jail. In 1992, Argenzio died at his house in Florida, consistent with a scientific examiner’s record in Diana’s record.

“It’s a difficult case,” Det. Sgt. Sajdak advised Dateline. “Many years have handed, the detectives who labored at the case are long past, one of the vital witnesses are long past. It’s onerous to mention if we will be able to ever to find her.”

Diana Lynn Harris

He added that the investigation into Diana’s disappearance is ongoing and he urges any individual who could have knowledge to name the sheriff’s place of work.

“A work of data that can appear insignificant might be the piece to resolve this example,” Det. Sgt. Sajdak mentioned. “If you recognize one thing, please name us.”

Now, just about 4 many years later, Diana’s daughter nonetheless fondly recollects the 10 years she spent along with her mom.

“I bring to mind all of the puts she took us for amusing, the days she did my hair for college and when she cooked breakfast for us each and every morning. She actually used to be such a fantastic mother who gave my brother and I a whole lot of love and affection,” Christine advised Dateline. “She used to be energetic in each and every a part of our short while along with her. I had my first 10 years of lifestyles along with her, some other people do not get that. And so I’m grateful to God for each and every little bit of time we had. We have been very blessed.”

Christine added that she recollects her mom being a “glorious mom” even if she led a hard lifestyles. She felt like their transfer used to be an break out for her mom, however sadly resulted in the tip in their time in combination.

“I’ve gorgeous recollections of my lifestyles along with her. She labored onerous, cooked glorious meals, and used to be by no means too busy to play with my brother and me,” Christine mentioned. “Regardless of how drained she used to be or how weighed down via worries, she gave us unstinting love and a spotlight.”

All over the years, Christine has put in combination recordsdata of data that she hopes will in the future result in solutions in her mom’s case. Even though 39 years have handed, Christine tells Dateline she isn’t giving up.

“For 39 years now, I’ve been looking for out what took place to her, and I will be able to no longer prevent till I am getting a solution.”

Somebody with details about Diana’s case is steered to name the Monroe County Sheriff’s Administrative center – Particular Investigations Department at (305) 289-2410.

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