Now playing
01:31
Police chief: We remained committed to this investigation
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
PHOTO: CNN
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
Now playing
02:28
CNN's Joe Johns explains Biden's short speech as relief bill heads to Senate
House Speaker Nancy Pelosi
PHOTO: House TV
House Speaker Nancy Pelosi
Now playing
02:52
House passes Biden's $1.9 trillion Covid-19 relief package
PHOTO: CNN Weather
Now playing
02:03
Weekend weather: Flash flooding, severe storms, and record warmth
Misinformation Trump Capitol March rn orig_00004630.png
Misinformation Trump Capitol March rn orig_00004630.png
Now playing
04:08
These Trump supporters are convinced he will be president again on March 4
AURORA, CO - DECEMBER 15: (EDITORIAL USE ONLY) Rocky Mountain Regional VA Medical Center investigational pharmacy technician Sara Berech holds a dose of the Johnson & Johnson COVID-19 vaccine before it is administered in a clinical trial on December 15, 2020 in Aurora, Colorado. The Johnson & Johnson vaccine could be submitted for emergency use by late January and is the only vaccine among leading candidates given as a single dose. (Photo by Michael Ciaglo/Getty Images)
PHOTO: Michael Ciaglo/Getty Images
AURORA, CO - DECEMBER 15: (EDITORIAL USE ONLY) Rocky Mountain Regional VA Medical Center investigational pharmacy technician Sara Berech holds a dose of the Johnson & Johnson COVID-19 vaccine before it is administered in a clinical trial on December 15, 2020 in Aurora, Colorado. The Johnson & Johnson vaccine could be submitted for emergency use by late January and is the only vaccine among leading candidates given as a single dose. (Photo by Michael Ciaglo/Getty Images)
Now playing
03:19
Doctor who voted to approve Johnson and Johhnson vaccine speaks out
Saudi Crown Prince Mohammed bin Salman attends a conference in the Saudi capital Riyadh on October 2018.
PHOTO: FAYEZ NURELDINE/AFP/Getty Images
Saudi Crown Prince Mohammed bin Salman attends a conference in the Saudi capital Riyadh on October 2018.
Now playing
02:10
US intel report: Saudi Crown Prince responsible for approving Khashoggi operation
PHOTO: CNN
Now playing
02:24
Acosta corrects CPAC organizer: Trump did lose the election
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week
PHOTO: Michael M. Santiago/Getty Images
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week's riots at the U.S. Capitol Building, the FBI has warned of additional threats in the nation's capital and in all 50 states. According to reports, as many as 25,000 National Guard soldiers will be guarding the city as preparations are made for the inauguration of Joe Biden as the 46th U.S. President. (Photo by Michael M. Santiago/Getty Images)
Now playing
02:33
This is what's in the $1.9 trillion coronavirus package
PHOTO: CNN
Now playing
09:36
I lost everything: Texas mom's devastating story from winter storm
Now playing
01:23
See what happened when CPAC organizers asked crowd to wear masks
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017.  / AFP PHOTO / Daniel SLIM        (Photo credit should read DANIEL SLIM/AFP via Getty Images)
PHOTO: Daniel Slim/Getty Images
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017. / AFP PHOTO / Daniel SLIM (Photo credit should read DANIEL SLIM/AFP via Getty Images)
Now playing
05:24
US carries out airstrikes on Iran-backed militia groups
A woman walks past mailboxes  seen outside of a US Post Office in Washington, DC on August 17, 2020. - The United States Postal Service is popularly known for delivering mail despite snow, rain or heat, but it faces a new foe in President Donald Trump. Ahead of the November 3 elections in which millions of voters are expected to cast ballots by mail due to the coronavirus, Trump has leveled an unprecedented attack at the USPS, opposing efforts to give the cash-strapped agency more money as part of a big new virus-related stimulus package, even as changes there have caused delays in mail delivery. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
PHOTO: Mandel Ngan/AFP/Getty Images
A woman walks past mailboxes seen outside of a US Post Office in Washington, DC on August 17, 2020. - The United States Postal Service is popularly known for delivering mail despite snow, rain or heat, but it faces a new foe in President Donald Trump. Ahead of the November 3 elections in which millions of voters are expected to cast ballots by mail due to the coronavirus, Trump has leveled an unprecedented attack at the USPS, opposing efforts to give the cash-strapped agency more money as part of a big new virus-related stimulus package, even as changes there have caused delays in mail delivery. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
Now playing
02:49
Biden announces 3 nominees to USPS board
PHOTO: CNN
Now playing
02:00
Weekend hindered by rain in the East and snow in the Northwest
The exterior of the U.S. Capitol building is seen at sunrise on February 8, 2021 in Washington, DC. The Senate is scheduled to begin the second impeachment trial of former U.S. President Donald J. Trump on February 9.
PHOTO: Sarah Silbiger/Getty Images
The exterior of the U.S. Capitol building is seen at sunrise on February 8, 2021 in Washington, DC. The Senate is scheduled to begin the second impeachment trial of former U.S. President Donald J. Trump on February 9.
Now playing
01:57
Senate parliamentarian rules against minimum wage increase in relief bill
Now playing
03:56
Marjorie Taylor Greene's challenger explains decision to run
Everyone wears masks and desks are spaced at the high school, where full in-person teaching has been offered since the school year began.
PHOTO: CNN
Everyone wears masks and desks are spaced at the high school, where full in-person teaching has been offered since the school year began.
Now playing
03:20
Ohio school is staying open with these safety measures
(CNN) —  

Virginia Beach police have accused an 80-year-old New York man of killing two teens in a case that’s gone unsolved for 46 years.

The double homicide dates to 1973, when Janice Pietropola and Lynn Seethaler, both 19, traveled from the Pittsburgh area to Virginia Beach to vacation. They were found dead on June 30 inside their oceanfront motel cottage, and their deaths were ruled homicides, police said.

After an exhaustive investigation, the case went cold, police said. The cottage where the teens were slain was destroyed, then rebuilt into motels and shops.

Last fall, Virginia Beach Police cold case investigators, working with the local prosecutor, began to aggressively research a strong lead in the case, police said.

Police on Monday arrested the accused killer: Ernest Broadnax of New York. He was arrested in New York and charged with two counts of second-degree murder and one count of rape, police said. Broadnax is awaiting extradition, police said. It was not immediately clear if he had retained an attorney.

Michael Pietropola, brother of victim Janice Pietropola, said he felt “bittersweet” about the arrest. He is happy that justice may finally be served, but it also “opened up deep wounds that had been there since 1973.”

“We hope through the trials and proceedings that we will get answers, answers that the police can’t even give us right now,” Pietropola said, “so we can get some closure, some rationalization of a crazy crime that took the lives of two beautiful teenagers.”

Mostly, Pietropola said, he hopes to be able to make some sense of what happened in Virginia Beach in 1973.

“What was going through this guy’s mind? What made him pick my sister and her friend? What drove him to this? Those are the questions that as a brother I would want for closure,” Pietropola said.

Broadnax served three prison stints in New York for assault, burglary, and attempted burglary, records show. He was released on parole in 2013.

Virginia Beach Police Chief Jim Cervera declined to describe what led to Broadnax’s arrest, other than saying it was “an advancement in technology that wasn’t available X number of years ago. Most of the technology, as you know, that’s coming online wasn’t available 10 years ago.”

Investigators, he said, just kept resubmitting pieces of evidence.

Eventually, that doggedness paid off.