The president has previously called the news media "the enemy of the American people".
At a memorial service Monday night for one of those killed, editor Rob Hiassen, Marquardt said he once slept with a baseball bat by his bed because he was so anxious about Ramos.
The other shooting victims were Gerald Fischman, 61, editorial page editor; John McNamara, 56, a staff writer; Rebecca Smith, 34, a sales assistant; and Wendi Winters, 65, who worked in special publications.
The Baltimore Sun, which owns the smaller newspaper, said journalists "dived under their desks and pleaded for help on social media". Hiaasen was the brother of best-selling author Carl Hiaasen.
Ramos, armed with a shotgun and smoke grenades, allegedly shot out the entrance windows to the Capital Gazette newsroom just before 3 p.m. Thursday.
Bumrah, Sundar ruled out of England T20I series
England didn't require his services with the bat but we've witnessed how unsafe he can be on his day. Jos Buttler has been in some ominous form and will look to stamp his authority on the Indians.
Annapolis Mayor Gavin Buckley speaks at a news conference in Annapolis, Maryland, on Tuesday, July 3, 2018, to discuss the lowering of the USA flag to half-staff to honor the employees killed in last week's shooting at the Capital Gazette newspaper.
"These guys, they don't make a lot of money". I told you so.
Until 2016, when courts rejected a last round of his many appeals, Ramos pursued his claim that he had been wronged by the paper. A state judge through the case out and an appellate court judge upheld that ruling.
"As soon as the president directly heard about the request made by the mayor he asked that we reach out and verify the mayor had made the request and when we did, the president asked the flags be lowered immediately", Ms Sanders told reporters on Tuesday.
Neither Hartley nor Marquardt is still employed by the paper and neither was at its offices on Thursday.
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Iran's Supreme Leader Ayatollah Ali Khamenei on Saturday accused Washington of trying to turn Iranians against their government. Iran's rial currency has lost up to 40 per cent of its value since last month, when Trump pulled out of the nuclear deal.
The letter Jarrod Ramos sent to the Annapolis newspaper's Baltimore-based lawyer was written to resemble a legal motion for reconsideration of his unsuccessful 2012 defamation lawsuit against the paper, a columnist and then-publisher Tom Marquardt. Add Maryland Newspaper Shooting as an interest to stay up to date on the latest Maryland Newspaper Shooting news, video, and analysis from ABC News.
The newsroom looked "like a war zone", he told the Baltimore Sun.
WUSA-TV in Washington reported police surrounded Ramos' home in Laurel as they prepared search warrants. He will face either a preliminary court hearing or grand jury indictment within the next 30 days.
A building housing The Capital Gazette newspaper's offices is seen at dawn, June 29, 2018, in Annapolis, Md.
Heat advisory issued for today
An excessive heat warning remains in effect through late Saturday for Chicago as sweltering summer temperatures stick in the area. This is especially true during warm or hot weather when vehicle interiors can reach lethal temperatures in a matter of minutes.