"I can't stop shaking because I can't stop thinking about how this could be any one of us", Alexander told The Sun.
A law enforcement official speaking on the condition of anonymity told The Associated Press that the suspect mutilated his fingers in an apparent attempt to make obscure his identity.
The NYPD deployed units to all major media outlets in New York City as a precaution.
He said that he and others remained hidden under the desks when the shooter stopped firing.
Police responded within 60 to 90 seconds and confronted the suspect, authorities said.
Frashure said during the news conference that law enforcement from Annapolis, nearby Howard County, the Maryland State Police and federal agencies were participating in the response.
The Anne Arundel Police Department confirmed Thursday at 2:21 p.m. CT there was "an active shooter" at 888 Bestgate Road in Annapolis. "They were general threats toward the newspaper", Krampf said. In that lawsuit, Ramos also sued Capital Gazette Communications Inc and Capital Gazette Communications LLC. "There are several people who have died in this incident".
Police later said they recovered what was believed to be an explosive device from the building housing the Capital Gazette.More news: Tyronn Lue doesn't seem too confident in LeBron James returning
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The suspect walked into the building with a shotgun "and he looked for his victims as he walked through the lower level", Krampf said.
One law enforcement source told CBS News the suspect was a male in his 20s who had no identification on him.
Davis hid under his desk throughout the attack but could hear the shooter reloading and continuing fire on the newsroom. He said in an interview that while he writes about shootings and death "all the time", it's impossible to know how traumatizing it is to go through such a tragedy "until you're there".
U.S. President Donald Trump has been briefed on the shooting, said White House deputy press secretary Lindsay Walters.
Capital Gazette editor Rob Hiaasen is among the victims, our media partner The Baltimore Sun reports. "Thank you to all of the First Responders who are now on the scene", he said. Police could be seen outside The New York Times, ABC News and Fox News early in the evening.
"This is a newspaper we live with every day", Susan O'Brien, a spokesperson for the city of Annapolis said. The Bureau of Alcohol, Tobacco, Firearms and Explosives said agents were responding. Scores of police vehicles were at the scene.