ABC News’ @DannyNewTV examines the life of the 9/11 firefighter who stood beside President Bush at Ground Zero.

Firefighter Bob Beckwith, remembered for standing with President George W. Bush in an iconic photo at the World Trade Center site in the days after 9/11, has died.

Bob Beckwith, a retired FDNY firefighter who suited up and ran to help others at Ground Zero, passed away, the Uniformed Firefighters Association said.

The medical examiner's office announced Thursday it has positively identified a 9/11 victim's remains.

There have been 343 FDNY members who have died from 9/11-related illnesses, matching the number of the department's members who were killed in the attack, officials said.

The two rainbows appeared just after a storm passed through New York state.

The Tribute in Light illuminates the New York City skyline in memory of those lost on Sept. 11, 2001.

America marked 22 years since the terrorist attacks at the Pentagon, Pennsylvania and at ground zero.

Ron DeSantis attended a 9/11 commemoration ceremony at ground zero in New York City on Monday, appearing with more than a dozen people who lost family on Sep. 11

Republican presidential candidate Vivek Ramaswamy commemorated the 22nd anniversary of the Sept. 11 terrorist attacks after he got criticized for past comments over them.

Former VP Mike Pence said Biden should have been in New York or at the Pentagon.

Families, survivors and others gathered at the World Trade Center, Pentagon and Pennsylvania to mark the somber anniversary.

President Joe Biden lands in Anchorage, Alaska, after the G20 summit to give his remembrance for the 22-year anniversary of the 9/11 attacks.

The remains of two more victims were identified last week as the nation remembers the attacks 22 years later. ABC News’ Derricke Dennis reports.

The names of the victims were read aloud, and moments of silence were held in New York as people honored the nearly 3,000 killed on Sept. 11, 2001.

The country reflects on the nearly 3,000 people who died at the Twin Towers, the Pentagon and in Shanksville, Pennsylvania, on Sept. 11, 2001, in the deadliest terror attack on U.S. soil.

Twenty-two years after the Sept. 11, 2001, terrorist attacks, the New York City's Office of the Chief Medical Examiner has positively identified two more victims.

The New York City Fire Department has added 43 new names to its World Trade Center Memorial Wall.

A moment of silence is observed to recognize the 9/11 terror attacks that took place in 2001.

Luke Laidley, a 9/11 survivor and dad of three, died on July 4 after jumping into Lake Michigan to help kids struggling in the water.

George Santos has invited a former ground zero volunteer firefighter Michael Weinstock to President Joe Biden's State of the Union address on Tuesday

The National Archives disclosed declassified notes from a 2004 interview.

A New York City paramedic who responded to the terrorist attacks on Sept. 11, 2001, will be laid to rest on Wednesday, six days after she was stabbed to death.

Twenty-one years after the Sept. 11 attacks, forensic scientists are still hard at work identifying remains found at Ground Zero.

A former MLB pitcher who retired and became a Port Authority police officer died in a car accident on his way to a Sept. 11 memorial ceremony on Sunday in New York City.

Families, friends and others attended somber ceremonies on Sept. 11 to honor those who lost their lives 21 years ago.

President Joe Biden on Sunday participated in a wreath-laying ceremony and delivered remarks at the 9/11 Remembrance Ceremony at the Pentagon.

The country pauses to remember the thousands killed during the terror attacks on Sept. 11, 2001.

Retired New York City Fire Chief Joseph Pfeifer reflects on the Sept. 11, 2001, terror attacks ahead of the 21st anniversary.

The controversial tournament backed by the Saudis, kicks off at former President Donald Trump's golf club.

The LIV Golf tournament will be played in New Jersey, just miles from the World Trade Center.

9/11 rescue dogs' best friends were the people who kept dogs safe at Ground Zero .

Firefighters at a New Jersey gym walked up 110 flights to honor those who lost their lives in the 9/11 attacks.

Melanie Elturk, like many Muslim women who wear a hijab, noticed a stark change in how she was perceived after the terrorist attacks on the World Trade Center in 2001.

The Biden administration began to release newly declassified documents on the Sept. 11, 2001, investigation over the weekend.

Shannon Stapleton and Kayla Bergeron have bonded over tragedy.

Former President George W. Bush spoke at the Sept. 11 memorial at Shanksville, Pennsylvania, to mark the 20th anniversary of the attacks Saturday.

The document is from the investigation into possible connections between the 9/11 hijackers and the Saudi Arabian government.

New York City commemorated the 20th anniversary of 9/11 with the familiar 'Tribute in Light' beams. Many buildings across the city were also illuminated in blue.

The 9/11 attacks set off a wave of Islamophobia in America that many peaceful and patriotic Muslims say still reverberates years later.

President Joe Biden, first lady Jill Biden, Vice President Kamala Harris and second gentleman Douglas Emhoff participated in the ceremony to lay a wreath at the Pentagon.

President Joe Biden paid a visit to the Shanksville Volunteer Fire Company in Pennsylvania, which was first to respond to the Flight 93 crash on Sept. 11, 2001.

Bells rang for six moments of silence to mark the 20th anniversary of the Sept. 11 attacks and to honor the victims.

Americans marked 20 years since the 9/11 terrorist attacks in a series of events around the country.

Victims' families observed the pretrial proceedings this 20th anniversary.

Tributes are being held across the country to honor the lives lost on 9/11 and the first responders who rushed in to help.

President Joe Biden released a message to the nation focusing on the unity that followed the attacks

Shanksville, Pennsylvania, remembers an act of supreme heroism by passengers saving lives while sacrificing their own by taking United Flight 93 down.

More than 64,000 claims for assistance have been made by survivors and families to the Victims' Compensation Fund.

"Tunnel to Tower" founder Frank Siller, continues to inspire with his walk through the Brooklyn Battery Tunnel commemorating his firefighter brothers' run to the Towers.