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Prosecutor’s Office in Trial Karen Read He watched to strengthen his narrative about the death of Boston police officer John O’Keefe, turning to the data expert in the collision, reading at the crime scene during the last O’Keefe movement in the morning after his death.
Read, 45, he was charged with hitting your boyfriendThe 46-year-old O’Keefe, with his Lexus SUV in drunken anger in the early morning hours of January 29, 2022, before leaving him freezing to death in the courtyard of colleagues in Kanton, Massachusetts.
Tuesday’s special prosecutor Hank Brennan called the state Probably the final witness of the point of view. Dr. Judson Welcher, a reconstruction of an accident and a biomechanical engineer from Aperture LLC, testified that the data on the black frame within the vehicle Reada did not record the collision of O’Keeefe’s death, but he insisted that the lack of data was expected because the system only registered cars, not pedestrine.
Brain surgeon testifies John O’Keefe died from a fall on a frozen field in Karen read the trial
Karen Read was shown during a murder trial at Norfolk Superior Court in Dedham, Massachusetts, May 27, 2025. (Matt Stone/Boston Herald via AP/pool)
“Have you been surprised that there is no collision information in the collision [black box]?? “Brennan asked.
“No,” Welcher said. “[It was] Exactly what I expected. ”
Welcher testified that he was able to reconcile the Techstream data from the reader Lexus SUV -As Info -Watches of the vehicle using his colleague Shargess reports, showing the moment when Read was included.
Karen read the testimony faces a brutal cross -examination of vehicles data
Photos of evidence from the investigation of Dr. Judson Welcher were shown during the trial of Karen Read 27 May 2025. (Swimming pool)
“So let’s go from an hour of running to a real hour,” Welcher said. “If you take when [the vehicle] is included from the Burgess report, you can see that Lexus has been on at 12:12:36 pm “
The Techstream watch inside the Reada Vehicle was 21 to 29 seconds behind O’KEEEFE’s mobile clock, demanding investigators to improve the data to match the cell phone, Welcher explained.
“That’s why you need to compare apples to apples,” Welcher said. “You have to get them at the same time.”
Dr. Judson Welcher testifies during the Karen murder trial, May 27, 2025. (Matt Stone/Boston Herald via AP/pool)
About 19 minutes after turning on the ignition, Read’s vehicle registered the second trigger event, said Welcher. Pointing to the revolutions per minute, acceleration and switching data from the Black Box, Welcher testified that the reading vehicle was 34 feet forward before supporting 53 feet on an gas of 74%, and the data showing that the car traveled to 23 mph to the end of the trigger event.
Welcher pointed to the information from O’Keefe’s phone, saying to Brennan that the rapid acceleration of the vehicle Reada matched the time mark of O’Keefe’s final interaction with the device.
“[The trigger event] It corresponds to the O’KEEEEFE mobile data window, “Welcher said.” [the vehicle] in front of 34 Fairview. ”
Karen read to achieve the main victory because the judge allows testimony to renovate the collision
Prosecutor Hank Brennan questioned the witness during the trial for the Karen murder, May 27, 2025. (Matt Stone/Boston Herald via AP/pool)
Data confirm further strengthening the prosecution’s time of prosecution around what allegedly caused the death of O’Keefe outside the Massachusetts home.
“At best for the defendant, this witness is moderately damaging,” for Fox News Digital is a retired higher court in Massachusetts. “Seventy -four percent of acceleration, no brake; Welcher is cute and professional, but not over the top, a kind of modest.”
Welcher turned his attention to the surveillance footage showing that he was reading from O’Keefe’s approach shortly before he discovered his lifeless body in the snow, testifying that his investigation concluded that the re -vehicle bumper had come into contact with O’Keefe, but the back of the light did not.
“I hate to see any fun to get hurt, but this was a bad day for Mrs. Read,” Lu said. “She [was] Driving a very top luxury lexus suv and pushed gas above 70% without braking. That Lexus SUV had to be removed like the Spacex rocket ship. It’s the nature of the beast – a very bad look for Mrs. Read. “
Defender Robert Alessi is referred to by Judge Superior Court Beverly Cannone while Karen read, left, looking at the Norfolk Superior Court in Dedham, Massachusetts, May 27, 2025. (Matt Stone/Boston Herald via AP/pool)
“So the only evidence of contact is nowhere near the upper light,” Welcher said. “I emphasize the word” upper rear light “because it is in line with the lower rear light, but still the lower rear light was also not broken.”
A collision expert testified that he performed his own experiment with a vehicle that is the same make and model as the SUV reading to explore the possible cause of the traces of scratches found on O’Keefe’s hand.
After learning, it was about the same height and weight as O’Keefe, Welcher covered the rear color rear light before restarting the stroke of the vehicle, with videos indicating that the color was left on the hand in the same area as O’Keefe’s injury.
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“Orientation of a split location on O’Keefe’s right forearm and hand is in line with geometry and orientation of right back light [Read’s SUV]”What was said.
Welcher testified that he also studied the nature of injuries sustained by attacks, saying that Brennan had led his investigation to the conclusion that O’Keefe had hit Read’s SUV.
“Based on all the evidence you considered,” Brennan said, “can you share with the jury of your opinion, at a reasonable degree of engineering security, whether the Lexus defendant hit Mr. O’Keefe on January 29, 2022, about 12:32?”
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“Based on the totality of the evidence, DNA, everything I talked about, which is in line with what is happening,” Welcher said. “With a reasonable degree of scientific security, that happened.”
Welcher’s testimony served to further strengthen the findings of the Burgess data expert Cellebrit Ian Whiffin, who had previously occupied an attitude as witnesses for the prosecution in the case of reading.
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The prosecution is expected to rest its case this week after the day of Welcher’s direct examination. If convicted of the upper chargeSecondary murder, reading faces the possibility of living in prison.
“Until now, without cross -examination, the defense has a bad day,” Lu said.
