Fifty-eight people killed. More than 500 injured. And yet, nearly a month after the Las Vegas Strip experienced the worst mass shooting in modern American history, local and federal authorities are now refusing to fill in the blanks.

Clark County Sheriff Joe Lombardo discusses the Route 91 Harvest Festival mass shooting at the Metropolitan Police Department headquarters in Las Vegas, Monday, Oct. 9, 2017. Erik Verduzco/Las Vegas Review-Journal

Clark County Sheriff Joe Lombardo, left, gets emotional during a news conference at the Metropolitan Police Department in Las Vegas on Oct. 13, 2017, with FBI Special Agent in Charge Aaron Rouse. Heidi Fang Las Vegas Review-Journal @HeidiFang

Clark County Sheriff Joe Lombardo discusses the Route 91 Harvest Festival mass shooting during an exclusive interview with the Las Vegas Review-Journal on Tuesday, October 10, 2017.K.M. Cannon / Las Vegas Review-Journal @KMCannonPhoto

Aaron C. Rouse, special agent in charge for the FBI in Nevada, during a press conference on the mass shooting, at the Las Vegas Metropolitan Police Department headquarters in Las Vegas, Wednesday Oct. 4, 2017. Erik Verduzco/Las Vegas Review-Journal

Fifty-eight people killed. More than 500 injured. And yet, nearly a month after the Las Vegas Strip experienced the worst mass shooting in modern American history, local and federal authorities are refusing to fill in the blanks.

It wasn’t always like this. In the days after Oct. 1, when Stephen Paddock opened fire on the Route 91 Harvest festival crowd from his Mandalay Bay corner suite, Las Vegas police were hosting multiple news conferences a day. Then, once a day. Then, once every few days.

They compiled and released snippets of officers’ body camera footage. They spent several minutes answering specific questions. They released a comprehensive timeline, which ended up being wrong. They took it back, and tried to clarify the errors, but instead caused more confusion.

By Oct. 13 — the last time the Metropolitan Police Department or the FBI addressed the media or public — something had changed. The sheriff, who had been straightforward and stern, was now emotional and at times combative. Both he and the FBI failed to provide much new information, and at the end of the meeting, they refused to take questions.

Since that day, the only person who has shed more light on the investigation is Mandalay Bay security guard Jesus Campos, who was shot in the leg while approaching the gunman’s room. His platform to share that information? “The Ellen DeGeneres Show,” which aired last week. He hasn’t made himself available to the media since.

“It doesn’t matter,” FBI spokeswoman Sandra Breault told the Las Vegas Review-Journal on Thursday, when asked why there had been no significant updates in two weeks. “It’s an ongoing investigation, and unless there’s something to report, there will not be a briefing.”

Calls to the national FBI office were forwarded back to Breault at the Las Vegas office.

At least twice this week, the Las Vegas Review-Journal has asked to speak with Sheriff Joe Lombardo about the shooting investigation. Both times, reporters were told by Carla Alston, the Police Department’s director of communications, that the sheriff “will not be conducting interviews.”

“As he has stated previously, the case is still ongoing” she said in an email Thursday. “Another media briefing will be held when we have new and accurate information.”

When asked when that briefing would be, Alston guessed it could occur in the next two weeks. The Review-Journal also specifically asked about the more than 50,000 hours of overtime that Metro officers have logged since Oct. 1 on work directly related to the shooting investigation.

“Investigators have made progress on investigative leads and in mapping out Stephen Paddock’s life for the last few years — and they’re still not done,” Alston said. “We still have officers dedicated to this case 24/7.”

She agreed that members of the public have a right to know more, “but they have a right to accurate information and not the speculation … that has filled so many news stories the past month.”