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WALTERBORO, S.C. — Jurors in Alex Murdaugh's double murder trial reached a verdict Thursday at 6:41 p.m. after less than three hours of deliberations and without asking any questions. 

The panel's decision will determine whether Murdaugh, 54, is sent to prison possibly for the rest of his life for allegedly gunning down his 22-year-old son, Paul, and his wife Maggie, 52.

Prosecutors have argued that he slaughtered Paul and Maggie on June 7, 2021, near the dog kennels on the family's hunting estate in Islandton, South Carolina, in a desperate act of self-preservation.

The Colleton County trial has now stretched into its sixth week with more than 70 witnesses taking the stand.

ALEX MURDAUGH: TIMELINE OF ONCE-POWERFUL SOUTH CAROLINA LAWYER'S SPECTACULAR DOWNFALL

Alex Murdaugh and his legal team listen to prosecutor Creighton Waters as he makes closing arguments

Alex Murdaugh and his legal team listen to prosecutor Creighton Waters as he makes closing arguments in Murdaugh’s trial on Wednesday. (Joshua Boucher/The State/Pool)

Investigation failures and alleged fabrications

Jurors received the case after Murdaugh's defense lawyer Jim Griffin delivered his summations. He argued that  investigators "failed miserably" in their probe and accused them of "fabricating evidence" against the defendant.

"We believe SLED [South Carolina Law Enforcement Division] failed miserably investigating this case and had they done a competent job, Alex would have been excluded from that circle a year ago, two years ago," he said.

Griffin argued that SLED immediately zeroed in on Murdaugh without considering other suspects. 

He then walked jurors through each misstep in the investigation.

Maggie had strands of hair in her hand that were never tested, footwear impressions at the crime scene weren't preserved and DNA samples were never taken from the victims' clothes, Griffin said.

ALEX MURDAUGH TESTIFIES HE IS NOT A ‘FAMILY ANNIHILATOR’ AT HIS DOUBLE-MURDER TRIAL

As the investigation progressed, "they began fabricating evidence" against Murdaugh, Griffin said, 

A report from a state blood-spatter expert, which was never introduced at trial, concluded that there was high velocity blood spatter on Murdaugh's T-shirt. 

This would mean that Murdaugh was standing feet from Paul when he allegedly shot him. 

But it was later revealed that the shirt tested negative for blood. After the defense challenged the blood spatter expert's report in pretrial motions, prosecutors did a 180, arguing at trial that Murdaugh's white T-shirt appeared freshly laundered.

"They went from Mr. Bloody shirt leading up to this trial to Mr. Clean during this trial," Griffin quipped. 

Diagram part of the Murdaugh trial exhibits

Diagram of the section of Alex Murdaugh's property where his wife, Maggie, and his son, Paul, were murdered. (Fox News )

The blue raincoat coated in gun shot residue recovered from the home of Murdaugh's mother months after the killings was never tied to the defendant — but agents told the grand jury it was his, Griffin said.

He also challenged the state's theory that Paul and Maggie died at 8:49 p.m. because that's when their phones locked for the last time. 

State's motive is weak

The attorney, who was a former federal prosecutor, ridiculed the state's suggestion of motive: that Murdaugh committed the heinous crime to prevent his financial malfeasance from coming to light. 

"He puts himself in the middle of a murder investigation, he puts himself in the middle of a media firestorm? That’s their motive?" asked Griffin incredulously.  

Besides, the attorney said, Murdaugh didn't need the diversion when his father was gravely ill and died three days after the murders.

Griffin played the damning dog kennel video that places Murdaugh at the crime scene with the victim within minutes of the murders, shredding Murdaugh's original claim that he was at the main residence napping.

In the clip, Murdaugh can be heard chatting convivially with Maggie about their dog Bubba catching a chicken in his mouth.

It's inconceivable that moments later Murdaugh would fatally shoot his beloved wife and son, Griffin argued.

Griffin conceded, as Murdaugh did on the stand, that his client lied repeatedly about being at the kennels that night. 

A man speaks inside a courtroom.

Defense attorney Jim Griffin raises an objection during Alex Murdaugh’s trial for murder at the Colleton County Courthouse in Walterboro, South Carolina, on Feb. 7, 2023. ( Joshua Boucher/The State/Pool)

"He lied, because that's what addicts do," Griffin said. "Addicts lie. He lied because he had a closet full of skeletons. He didn't want any more scrutiny on him."

Defense suggests Paul may have gotten himself killed 

Griffin argued for the first time that, perhaps, Paul's own actions led to his demise. 

"Let me add another scenario that's equally plausible," he said. "What if Paul, the 'detective,' learned, learned the source of drugs that were being sold to his dad?"

Griffin speculated that Paul could have confronted the dealer and threatened to turn him in if he didn't stop selling pills to his father.

The Murdaugh family smiling in a portrait.

A photo of the Murdaugh family taken days before Paul and Maggie Murdaugh were shot to death. From left, Buster, Paul, Maggie and Alex Murdaugh. (Defense exhibit)

"What if the source is a member of a dangerous drug gang?" asked Griffin, eliciting an objection that was sustained.

Paul, who was known as the 'little detective' in his family, had confronted his dad about a stash of pills in his computer bag about a month before the murders.

Griffin also argued that there were likely two shooters because there were two guns. 

Griffin chokes up in final plea to jurors

Griffin argued that the state's case is built on theories and speculation and that is not evidence beyond a reasonable doubt. 

Buster Murdaugh sips from a bottle of water as he leaves Colleton County Courthouse in Walterboro, South Carolina, on Wednesday. Buster's father, Alex Murdaugh, is on trial for the double slaying of his son, Paul, and wife, Maggie, in June 2021. (Larry Paci for Fox News Digital)

"Two words that justice demands in this case, and those words are 'not guilty,'" said Griffin, as his voice cracked with emotion.

"On behalf of Alex, on behalf of Buster, on behalf of Maggie and on behalf of my friend, Paul, I respectfully request that you do not compound a family tragedy with another. Thank you," he said capping off a two-hour summation.

Prosecutor says Paul was key witness in rebuttal argument

Assistant Attorney General John Meadors delivered the state's rebuttal argument — the final word at Murdaugh's double murder trial.

"I don’t know why he did it," Meadors said, adding that the state doesn't have to prove motive. "I think he did it to protect the one he loved the most. The one he really loved the most, so he could keep his lifestyle and not be embarrassed financially. He wanted to keep going and loving Alex."

Murdaugh's testimony was a gift to the prosecution, Meadors said, because he corroborated that he is a liar.

But the person who ultimately solved the case was the little detective, Paul, the prosecutors told jurors.

"Paul, he didn’t testify to you up on this stand, but he testified through Dr. Riemer, and he testified through his phone," said Meadors, referring to the forensic pathologist and the dog kennel video. "It was so beautiful of him to help us. It was so pure." 

Juror booted off case

A female juror was kicked off the panel Thursday after the court learned that she had conversations with at least three people about the case and had shared her opinion of the evidence that had been presented in violation of the judge's explicit instructions.

In a rare moment of levity in the trial, the dismissed juror requested a dozen eggs, her purse, and a bottle of water that had been left in the jury room.

"We've got a lot of interesting things, but now a dozen eggs," the judge said with a smile, eliciting laughter from the courtroom.

Prosecutors portray Murdaugh as a cunning conman

Lead prosecutor Creighton Waters delivered a marathon three-hour closing argument Wednesday, casting the defendant as a master manipulator who killed his wife and son to stave off a devastating financial reckoning. 

Lines outside Alex Murdaugh trial

Spectators line up outside the Colleton County Courthouse in Walterboro, South Carolina, on Thursday to snag a seat in the courtroom. (Mark Sims for Fox News Digital)

Murdaugh is charged with stealing nearly $9 million from clients and his former firm, and admitted to the bulk of the thefts when he testified.

Waters told jurors that Murdaugh was a cunning conman who tried to deceive them when he took the stand last week.

"This is a man who made his trade on lying. He lied about the most important facts in the case and effortlessly and easily pivoted to a new lie when confronted by something he wasn’t prepared for," said Waters of Murdaugh's testimony.

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Murdaugh, he added, deceived the people who thought they were closest to him.

"He fooled Maggie and Paul, too, and they paid for it with their lives," Waters told the jury. "Don’t let him fool you, too."