Sue Simpson

Thank you, Andrea. Talk soon.

This is the man who's dealing with the heart of the whole case. Did that Lexus hit John O'Keefe?

This is the man who's dealing with the heart of the whole case. Did that Lexus hit John O'Keefe?

Hello, Andrea. Hello.

Hello, Andrea. Hello.

Well, Andrea, it was a really slow start on Tuesday. There was a long sidebar. And then the court got going eventually. But Karen's defense attorney, Robert Alessi, was speaking of this sidebar very passionately to the judge and the other attorneys there. You know, I couldn't hear his words, of course, but his voice and his demeanor were intense. And we know why.

Well, Andrea, it was a really slow start on Tuesday. There was a long sidebar. And then the court got going eventually. But Karen's defense attorney, Robert Alessi, was speaking of this sidebar very passionately to the judge and the other attorneys there. You know, I couldn't hear his words, of course, but his voice and his demeanor were intense. And we know why.

The next witness would be asked the question at the very heart of this case. Did Karen Reed's Lexus strike John O'Keefe or not? Prosecutors put that witness, Dr. Judson Welcher, on the stand before his testimony started for a brief voir dire, and we should point out Welcher is a new expert. He did not testify at the first trial.

The next witness would be asked the question at the very heart of this case. Did Karen Reed's Lexus strike John O'Keefe or not? Prosecutors put that witness, Dr. Judson Welcher, on the stand before his testimony started for a brief voir dire, and we should point out Welcher is a new expert. He did not testify at the first trial.

The defense objected to some parts of his testimony saying they were outside his area of expertise, and they also wanted to know if Dr. Welcher made changes to his presentation in the past two weeks after talking to prosecutors. In other words, did the prosecution exert last-minute influence on his testimony? there were some tense exchanges.

The defense objected to some parts of his testimony saying they were outside his area of expertise, and they also wanted to know if Dr. Welcher made changes to his presentation in the past two weeks after talking to prosecutors. In other words, did the prosecution exert last-minute influence on his testimony? there were some tense exchanges.

Well, he started out by explaining his background, which is in both accident reconstruction and also biomechanical engineering, explaining how accidents impact the body.

Well, he started out by explaining his background, which is in both accident reconstruction and also biomechanical engineering, explaining how accidents impact the body.

There was a lot there, Andrea. First, he gave a long list of things that he'd reviewed in the case. The police reports and witness statements, ring camera video from John O'Keefe's house, other surveillance video from the bars that John and Karen had been to that night. He looked at photos and videos from the scene, cell phone data, jams.

There was a lot there, Andrea. First, he gave a long list of things that he'd reviewed in the case. The police reports and witness statements, ring camera video from John O'Keefe's house, other surveillance video from the bars that John and Karen had been to that night. He looked at photos and videos from the scene, cell phone data, jams.

GPS data, weather reports, and the media interviews that Karen did, including her interview with Dateline. He also told jurors that he went to the front lawn. He lives in California, and he traveled to the front lawn in Canton, Massachusetts, where John O'Keefe's body was found. He took photographs there, and he made measurements, and he came up with a computer model.

GPS data, weather reports, and the media interviews that Karen did, including her interview with Dateline. He also told jurors that he went to the front lawn. He lives in California, and he traveled to the front lawn in Canton, Massachusetts, where John O'Keefe's body was found. He took photographs there, and he made measurements, and he came up with a computer model.

He even bought the same type of SUV that Karen was driving that night to do some testing.

He even bought the same type of SUV that Karen was driving that night to do some testing.

He did. He did. Really? He bought an SUV. Yes, indeed. You know, all of which is to say if the prosecution was hoping to show jurors that this guy did his homework, he did everything to persuade them that he deserved an A. Sue, much of his testimony was quite technical.