A former state police lieutenant in charge of the scene where John O'Keefe died on January 29, 2022, proved his decision to use unorthodox evidence collection, which means that in Karen Read’s trial, Massachusetts Financials Analyst was charged with her boyfriend, a Boston policeman running Massachusetts financial analyst and left him dead in the snow.

Last week, Jennifer McCabe's testimony was a primary witness who was the main witness at O'Keefe's party at night and was on the scene when he was found dead the next morning.

Special Attorney Hank Brennan stirred through witnesses Monday, a blood alcohol expert, a young couple, saw Red's car, a paramedic and former Guangzhou policeman who used Leaf bragging and red personal cups to collect evidence before prosecutors believed O'Keeffe was beaten and killed.

Jennifer McCabe at Karen Read

Former Canton Lieutenant Paul Gallagher, director of the scene after O'Keefe was transported to Good Samaritan Hospital, is the decision maker responsible for the many unorthodox approaches that gather evidence on the morning of January 29, 2022.

Gallagher said he wanted a leaf blower to use because he was afraid that disturbing snow with a shovel could damage potential evidence. He said the red solo cups were "very held liquid" and claimed that the paper grocery bags used to transport them were similar to police if there was a bag of evidence.

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from Fox True Crime Center

At one point, Gallagher denied any knowledge that made Massachusetts State Policeman Michael Proctor the case’s main investigator, prompting Read’s visible reaction at the defense table, who lifted the words that didn’t reach the court microphone.

Defense attorney Alan Jackson questioned the loose standards for evidence collection during a tough cross-examination, asking Gallagher about his lack of written account, potential contamination of blood evidence and unclear custody or evidence logs.

Jackson asked why he was sending a sergeant to the leaf blower, but no one was sent to grab the proper evidence to collect materials.

Karen Read Crash Expert admits he sent notes to the Ministry of Defense, violating the seal order in the first trial

But Gallagher shot, and if O'Keefe's blood sample was contaminated with someone else's DNA, it would appear in the test and would be "good" for Read's defense.

"(The cups) won't be soaked," Gallagher said. "They're big. I need a small sample. My idea is that because (the blood) is frozen or condensed, we can collect it, transport it and transfer it to a crime lab, which can extract DNA, but they think it's best."

He said his persistent decisions and lack of awareness during the crime due to the ongoing snowstorm conditions. The initial call was possible "unattended death", which he said usually involves natural causes.

He said Gallagher responded to the scene in his private vehicle because it had four-wheel drive.

He instructed the officer to put frozen blood into the snow and store them in a bag at the supermarket Stop & Shop. He also found a broken "cocktail glass" near the approximate value of O'Keeffe's death.

Brennan plays two Gallagher videos at the crime scene, depicting the effectiveness of John O'Keefe's blood in the snow. Brennan noted that a broken cocktail glass can be seen buried in the snow where O'Keefe's body was found. Gallagher testified that he handed the glass to another officer on the scene and did not see it again until it was transferred from the evidence locker to the forensic department.

Gallagher went on to reveal the glass in the courtroom and raised it for the jurors.

Read denies that her vehicle hit O'Keefe and does not plead guilty.

External auditors have previously recommended more training for Guangzhou police as they conducted an independent review of the handling of crime scenes.

Gallagher is expected to return to the witness booth Tuesday morning.

Katie McLaughlin, a caregiver at the Guangzhou Fire Department, testified on the scene whether there was any major trauma to the victim after she asked to read demographic information about O'Keefe.

McLaughlin testified: “She answered a series of her repeated statements, ‘I hit him, I hit him.’

She said McCabe told her to calm down, but the reading was said to have been repeating the sentence.

"The policeman asked her, 'What did you say?" she testified. "She repeated, 'I hit him.' Then, the officer sent a signal to ask his sergeant to come to the scene."

During cross-examination, McLaughlin told defense attorney Jackson that she did not take notes during the exchange. He played the Dashcam video from that morning and asked her what she was doing. She said she was writing O'Keeffe's life on her gloves.

He asked her if she wrote anything about reading the “confession” of crime. She said she didn't, she threw away the gloves and kept no notes from them.

McLaughlin testified that she knew Caitlin Albert, whose parents owned a house on 34 Fairview Road, where he was found dead, and over the years, he had grown up and overlapping social circles. However, she denied that they had close personal relationships and understateed their connections.

Jackson tried to get McLaughlin to discuss showing her photos to her and Caitlin Albert and grilling her with testimony from Read's first trial, but the judge continued Brennan's objection.

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Ryan Nagel and Heather Maxon dated at O'Keefe's death in January 2022 and both testified that they stopped outside 34 Fairview Road for about five minutes, when Read and O'Keefe arrived, she allegedly hit him with the SUV. According to the trial testimony, as they were pulled on the road, reading them in front of them, there was a male in the passenger seat.

Both testified that outside the address, they were behind the SUV in Read, they did not see him walking past or entering the house in the front yard, but they did not see him when they were in the passenger seat in Read's passenger seat when they left.

External experts told Fox News Digital that Nagel's testimony could help with defense, raising questions about O'Keefe's whereabouts at that time.

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"He didn't see John O'Keefe in the car or on the lawn, nor on the lawn," said Massachusetts defense attorney Grace Edwards. "Where is John O'Keefe?"

Another Massachusetts trial attorney and former Senate candidate John Deaton said the issue could raise the defense’s assertion that Red had never hit her boyfriend with her SUV.

He told Fox News Digital Numbers, and he told Fox News Digital Numbers, "Today's testimony damages the prosecution, as witnesses said, the passenger seat was empty and Karen was reading in the driver's seat, which shows that John O'Keeffe is already in the house." "This may be a reasonable doubt for No. 10."

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Nagel's sister's friend Sarah Levinson was in the house, and he testified that O'Keefe did not enter the home before she left with McCabe, husbands Matt and Julie Nagel.

Read allegations of facing second-degree murder, manslaughter and escape from the scene. If convicted of the highest charge, she could face life in jail.