Early on the morning of last Friday, cameras pictured a man stalking around the back of Nancy Pelosi's home on a hilltop in San Francisco.

One of the cameras showed this man with a hammer that you can actually see that clearly and then it shows him pushing through and breaking through a back door into the home.

Aaron Davis is an investigative reporter for the post. Since his attack five days ago, he has been piecing together what went wrong at the home of Nancy Pelosi.

3,000 miles away here in Washington, D.C., a couple blocks from the Capitol. All of this is streaming on screens in the command center of the Capitol Police.

But there are a lot of screens. There are a whole bank of screens and they're not always showing what's going on everywhere. There's 1,800 cameras feeding into this command center.

And one officer happens to catch in the darkness. There's flashing strobe lights. From another camera outside the front of Nancy Pelosi's home, an officer begins to track back looking at the minutes before 30 minutes earlier begins to replay this whole incident.

There it is on camera. Someone had broken into the house speakers home the second in line to the presidency. And in that time, had attacked her husband, beat him over the head with a hammer. And San Francisco police were trying to revive him out front.

From the newsroom of the Washington Post, this is Post Reports. I'm Martin Powers. It's Wednesday, November 2nd. We are taking you inside the investigation into the attack at Nancy Pelosi's home.

There are still so many questions about what could have been done to prevent it. And today, we're going to talk to Erin about the very real limits of trying to protect members of Congress as they're facing more threats than ever before.

So Erin, after David DePap, the guy who was accused of this attack, after he entered the Pelosi home, what do we know about what happened then?

So we've learned over the course of a couple charging documents have been released first by federal prosecutors. And this week by the San Francisco District Attorney, Paul Pelosi sleeping in bed just after 2 a.m. and awakens to David DePap over top of him shaking him and asking, where is Nancy? Are you Paul Pelosi? Where is Nancy?

One handy has the hammer and the other handy has zip ties. And according to these charging documents in the San Francisco District Attorney, Paul Pelosi quickly comes to and makes multiple attempts to call for help.

He tries to, it sounds like lunch into a elevator in the home where there's a phone to call for help. He's blocked by DePap.

At another point, he somehow makes his way into his bathroom where his cell phone, according to the document, is charging, calls 911.

And there's this very tortured conversation that takes place between the dispatcher and Pelosi. And then DePap, who comes in realizing that he's on the phone with police.

And Pelosi says, there's someone here looking for my wife. Can you please connect me to Capitol Police? Because they're the ones that are usually here protecting my wife.

And DePap seems to be agitated according to the documents and says, tell them everything's fine. And Pelosi kind of complies and says, I'm fine.

I don't, you know, don't send police or fire. Everything's okay. There's just someone here. And DePap says, tell them I'm a friend.

Pelosi says, yeah, he says he's a friend of Nancy waiting for my wife. But he also wants me to get the hell off the phone. And so, you know, this was the strange dialogue that went on during this 911 call that prompted the operator to say something is the mess here.

And this was put in a first as a well-being check. But she was the one who elevated it and, you know, to a priority call, meaning this was lights and sirens to the home. And they got their minutes later. And then found DePap and Pelosi there.

And then at some point, DePap actually attacks Pelosi, right? Like what happens there? And how does this episode conclude? According to the charging documents that were filed this week in San Francisco, we now have much clearer picture of what happened in those moments after the 911 call.

Paul Pelosi and David DePap make the way down the stairs. And then they end up in the entrance way of the home on Broadway Street when there's a loud knock at the door from police.

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