Sue Simpson

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.

Yeah, he had a huge amount of data to get through and simplify for them. So he began to walk through the timeline he created of what happened that night. He showed a computer model he made using data he collected about how Karen Reid's car moved. He then tested the data with the car he bought that matched Karen's SUV, and he tried to explain why John O'Keefe might have had the injuries he had.

Yeah, he had a huge amount of data to get through and simplify for them. So he began to walk through the timeline he created of what happened that night. He showed a computer model he made using data he collected about how Karen Reid's car moved. He then tested the data with the car he bought that matched Karen's SUV, and he tried to explain why John O'Keefe might have had the injuries he had.

Welcher is himself a similar height and similar weight to O'Keefe. So he said that he acted as him in testing, and we could see videos of him actually standing in front of that SUV, doing some of the testing, wearing clothes similar to what John O'Keefe was wearing that night, right down to the same make of sneakers.

Welcher is himself a similar height and similar weight to O'Keefe. So he said that he acted as him in testing, and we could see videos of him actually standing in front of that SUV, doing some of the testing, wearing clothes similar to what John O'Keefe was wearing that night, right down to the same make of sneakers.

And he covered the taillight in paint, and then he kind of swiveled into it, trying to show where the injuries would be on John O'Keefe's arm. He had a driver back the car into a crash dummy later to show what might have happened, you know, if the car did hit John O'Keefe.

And he covered the taillight in paint, and then he kind of swiveled into it, trying to show where the injuries would be on John O'Keefe's arm. He had a driver back the car into a crash dummy later to show what might have happened, you know, if the car did hit John O'Keefe.

And, of course, he dealt separately with the lacerations at the back of John O'Keefe's head because the prosecution said that John O'Keefe fell over into hard ground. He did point out, of course, that it's really hard to exactly model what would have happened when O'Keefe was hit by the car. Ultimately, the prosecutor asked what all of the testing and reviewing of the data led Welcher to conclude.

And, of course, he dealt separately with the lacerations at the back of John O'Keefe's head because the prosecution said that John O'Keefe fell over into hard ground. He did point out, of course, that it's really hard to exactly model what would have happened when O'Keefe was hit by the car. Ultimately, the prosecutor asked what all of the testing and reviewing of the data led Welcher to conclude.

He is. He is the prosecution's closer. So he is the witness that the prosecution wants the jury to remember the most. This is the man who's dealing with the heart of the whole case. Did that Lexus hit John O'Keefe? And so that's why, you know, he's so critically important.

He is. He is the prosecution's closer. So he is the witness that the prosecution wants the jury to remember the most. This is the man who's dealing with the heart of the whole case. Did that Lexus hit John O'Keefe? And so that's why, you know, he's so critically important.

So the defense was spirited when he was testifying and they were just as spirited when it came time for them to do their own cross-examination.

So the defense was spirited when he was testifying and they were just as spirited when it came time for them to do their own cross-examination.

Well, Andrea, you know, I am sure they have a few surprises planned. Karen has said they're planning on calling more witnesses this time. And Karen says they also have a more robust case this time around than they did in the first trial.

Well, Andrea, you know, I am sure they have a few surprises planned. Karen has said they're planning on calling more witnesses this time. And Karen says they also have a more robust case this time around than they did in the first trial.

And ultimately, I think, you know, this case is going to come down to the battle of the accident reconstructionists, you know, experts on both sides who offered their view of what happened that night. And it's going to come down to, of course, what argument the jury finds most compelling.

And ultimately, I think, you know, this case is going to come down to the battle of the accident reconstructionists, you know, experts on both sides who offered their view of what happened that night. And it's going to come down to, of course, what argument the jury finds most compelling.

Is it possible he could have been in shock? Objection, speculation.

Is it possible he could have been in shock? Objection, speculation.

Did Alex tell you that he got hit in the head with the bat? Objection, your honor. Here's a prior ruling.