Karen Read defense calls final witness as Boston cop death trial nears end

The protection of Karen Learn has talked about the skilled who is taken into account the final witness when her trial was put an finish to the dying of Boston agent John O’Keefe, who began in April.

Officers of Justice declare that, after an evening out, O’Keefe ranged along with her Lexus rammed and left him behind to die outdoors of a home get together throughout a file bizzard on January 29, 2022.

Dr. Andrew Rentschler testified briefly on Tuesday afternoon and is anticipated to return to the stand for a minimum of half a day on Wednesday earlier than the protection rests.

Karen Learn reveals that she is not going to testify in her personal protection

Karen learn conversations along with her lawyer, Alan Jackson, throughout her new trial, Tuesday, June 10, 2025, in Dedham, Mass. (Matt Stone/The Boston Herald through AP, Pool)

He witnesses the crash reconstruction firm ARCCA, which now works for the protection, however was retained by the federal authorities previous to the primary means of Learn, which ended with a certain jury.

Beforehand within the new course of, his colleague Dr. Daniel Wolfe that harm to each O’Keefe’s clothes and Learn’s SUV was not in line with a collision between a Lexus LX 570 and a pedestrian from 2021.

Rentschler is a biomechanist, an skilled in how the forces of physics and engineering apply to the human physique.

The dramatic courtroom of the defense procurer has legal experts who talk in Karen, read the murder process

Andrew Rentschler testifies to the accidents that John O’Keefe acquired when he died within the Karen Learn Learn Learn, Tuesday, June 10, 2025, in Dedham, Mass. (Matt Stone /The Boston Herald through AP, Pool)

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“For instance, a mechanical engineer can have a look at a chunk of metal and the size and the dimensions of the metal. When you apply a pressure in a sure path with a sure dimension, that metal will bend and finally it would break,” he defined.

“As a biomechanist, biomechanical engineer, I do the identical, however I have a look at the human physique. How a lot energy should be utilized by which path to get a particular kind of harm.”

Rentschler testified {that a} collision of 15 mph between the top of a crash dummy and a rear mild if reads wouldn’t have resulted in a cranium fracture. Consultants for each events have beforehand testified that his deadly harm appears in line with a backward fall – though the protection forensic pathologist Dr. In line with her, Elizabeth Laposata stated that he landed on one thing “inflexible” with a grainy texture – not the entrance garden the place he was discovered.

Karen Read’s silence in murder process increases the interests for defense

Officer John O’Keefe poses for his official headshot. O’Keefe’s girlfriend, Karen Reed, at present stands for homicide after he was discovered useless in January 2022 outdoors a home in Massachusetts. (Boston Police Division)

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Rentschler joined Laposata and one other witness of the protection, Dr. Marie Russell, within the opinion that scratches and cuts on O’Keefe’s arm weren’t attributable to an affect with the rear mild. The protection idea is that they have been inflicted by a canine chew.

Readers stated on Tuesday that she wouldn’t testify in her personal protection – and that Renstchler is the final witness to name her staff.

View: Karen Learn says she is not going to testify in her personal protection

“It is the proper step,” stated Grace Edwards, a chief was in Massachusetts who follows the case carefully. “It’s the solely resolution of the defendant or the place. On this case, Karen ought to resist a rigorous cross -hearing by Brennan, which might include clips of the documentary and all the opposite proof that we have no idea about different statements she has made.”

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She must also be confronted with questions on her consuming, stated Edwards, who might break the “upward momentum” of her protection, as a result of witnesses of consultants have repeatedly contradicted.