"Obviously, I'm disappointed. Is there a cutoff for tragedy?"
Mr. Buckley did not say why his request was refused.
Buckley said he had thought of ordering American flags in Annapolis lowered, but that his wife talked him out of concern that it would "polarize people", he said.
The request was made after a gunman opened fire at the newspaper near the Maryland state capitol, killing five with a shotgun.
"I want to just remember what a wonderful person Rob was and what a great, wonderful, selfless life he led", said Cowherd, one of several speakers who addressed the crowd assembled beneath a large white tent. The attack came amid months of verbal and online attacks on the "fake news media" from politicians and others from President Donald Trump on down.
"I knew if he was to do anything on a mass shooting level, it was going to target The Capital [Gazette]", said the woman, who asked to be identified only as Lori.
Trump has called the press the "enemy of the American people" and has called out media outlets and journalists by name on his Twitter and at his rallies.
In an editorial signed by a collection of survivors of the mass shooting at the Capital Gazette newspaper that resulted in the death of five of their colleagues, the staffers thanked everyone across the country for their show of support before pointing out that - since the shooting - they have been on the receiving end of more death threats.
'Nobody has the full story yet, but what happened there is a disgrace, ' he said.
In a joint statement, the groups say the tragedy "tears at our hearts, tugs at our compassion and calls fourth our fears for the safety of all those on the front lines of truth, accountability and journalistic pursuit".
Jarrod Ramos, the suspect in the deadly shooting at a Maryland newspaper on Thursday, had threatened the paper's writers with profanity-laced Twitter messages after they reported on a harassment case against him.
Wendi Winters, Gerald Fischman, Robert Hiaasen, John McNamara and Rebecca Smith were all killed during the shooting.
The Baltimore Orioles Major League Baseball team observed a moment of silence on June 29 in memory of the slain Capital Gazette employees.
Trump ally Anthony Scaramucci said he couldn't explain why Trump would have declined the request, saying it was a "tough one" and that he "certainly would have done it", speaking to CNN anchor Chris Cuomo. Friday morning's edition featured in-depth coverage of the shooting and obituaries of the five people killed.