The video of George Floyd’s murder at the hands — or, rather, at the knee — of a police officer has changed the way many of us think about law enforcement, social justice and racial equity.

It should change the way we think about journalism, too.

For nine minutes and 29 seconds, Darnella Frazier pointed her smartphone at Derek Chauvin as he squeezed the life out of Floyd. It would have been an act of great courage for anyone to keep recording; that Frazier was only 17 made it all the more remarkable. As Roy Peter Clark wrote for the Nieman Journalism Lab recently, Frazier should be awarded a Pulitzer Prize.

More than that, though, the video should force those of us in the news media to question the symbiotic relationship between reporters and the police — a relationship marked all too often by the police giving us good stories in return for our not asking too many questions.

Until this week I had spared myself the horror of watching the full video. The snippets that news organizations carried struck me as sufficient, and they are if all you’re looking for is a factual understanding of what happened. But to take in the whole scene is to be pulled into the moment — to become a frightened, angry spectator along with the crowd that gathered that day.

We see Chauvin grind his knee into Floyd’s neck as Floyd wails, “I can’t breathe!” and then “Mama, Mama.” We see Floyd fall silent and then go limp. We see Chauvin with a leer on his face while another officer, Tou Thao, impassively but menacingly keeps the bystanders back. We hear voices. “He’s not fucking moving!” “Check his pulse!” “You just really killed that man, bro.” We see an ambulance drive Floyd away.

Now consider what the official police report said. Here’s an excerpt: “Officers were able to get the suspect into handcuffs and noted he appeared to be suffering medical distress. Officers called for an ambulance. He was transported to Hennepin County Medical Center by ambulance where he died a short time later.”

It is hard to imagine an account more false than this one. It is a foul lie. And here is where we need to think about how reporters go about doing their work and why that needs to change.

For generations, reporters at smaller news organizations — community newspapers for the most part — have covered police news by dropping by the police station, examining publicly available incident logs, interviewing the officer in charge about anything that seemed noteworthy, and then writing it up. Assaults, house break-ins, drunken driving arrests — it’s the ultimate in one-source reporting, and I did plenty of it when I was starting out in the 1980s.

That’s no longer good enough. In fact, it never was. Since the start of the Black Lives Matter movement following the police killing of Michael Brown in 2014, I think we’ve all come to understand that if police news is important enough to deserve coverage, then it is important enough to be reported thoroughly. That has only accelerated following the high-profile police killings of Floyd and Breonna Taylor in 2020.

A tragedy such as the murder of George Floyd wouldn’t even make the paper in a large city like Minneapolis based on false police report that was filed. Without Frazier’s video, the truth probably never would have been known. But we now realize that the police are no more or less credible than any other people in authority whom we cover, and their words and actions need to be verified.

“The authoritative source was, and for many reporters still is, considered police officers, district attorneys, law enforcement in general,” my GBH News colleague Phillip Martin said recently on “The Scrum.” He added: “Now, many Black folk and brown folk have long been suspicious and skeptical of police and refused to accept their word for it. They had to prove it. But now we’re seeing that this is permeating in a broader sense, if you will…. Let's just say liberal America has become more and more skeptical.”

Yet even if journalists understand that the old way of doing things has to change, there are some significant challenges to transforming that understanding into something better.

There are the unknown unknowns, as Donald Rumsfeld used to say — that is, the impossibility of knowing that what seems like a routine police report is anything but, as was the case with Floyd’s murder. We can’t check out everything, and if something seems non-newsworthy, it may just slip away.

There is the reality that newsrooms are becoming more and more strapped for reporting resources — a situation that became that much worse last Friday, when Tribune Publishing’s nine major-market newspapers fell into the hands of the hedge fund Alden Global Capital, known for eviscerating its newsrooms.

There is the decline of the news media as a gatekeeper, with police departments themselves posting reports of arrests and other incidents on their websites and on social media with no independent verification.

Some news organizations, including the giant Gannett chain, have cut back or eliminated the publication of mugshots, especially for nonviolent crimes. A few papers, including The Boston Globe, are giving the subjects of old crime stories a chance to argue that those stories should be made invisible to search engines. Both of those steps help people who’ve been accused of crimes find employment and set their lives on a better path.

Perhaps most important, if a crime isn’t serious enough to warrant thorough reporting, then we shouldn’t report it at all.

Paul Bass, the founder and editor of the New Haven Independent, put it this way recently: “Media should not print names of arrestees unless we have their side, we have seen independent evidence corroborating the charges, an immediate threat exists to public safety requiring divulging the name, or a court has adjudicated the charge.”

Testifying at Chauvin’s trial, Darnella Frazier told the court: “It's been nights I've stayed up apologizing and apologizing to George Floyd for not doing more and not physically interacting and not saving his life.”

But there was nothing Frazier could have done except bear witness — which she did, thus changing the world. At its best, journalism is about bearing witness as well. Can we learn from a brave teenager with a smartphone? Can we resolve to do a better job of serving the communities we cover — by listening, and by seeking truth rather than taking dictation from those in authority?

The fate of journalism depends on getting the answers right — and on not letting this moment fade, unacted upon, into our collective memory.

GBH News contributor Dan Kennedy’s blog, Media Nation, is online at dankennedy.net.