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Mom, Son Sentenced To Life In Prison For Robbery Witness Murder

CENTENNIAL, Colo. (CBS4)- A woman and her son were sentenced to life in prison on Thursday for the murder of a marijuana store robbery witness. Terance Black, 26, and Tina Black, 51, were convicted on first-degree murder and conspiracy to commit murder by a jury last week.

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(credit: CBS)

The victim's sister, Karen Henderson, told reporters that her brother David did the right thing even after being threatened not to testify.

"From day one, he was scared. I never saw Dave like that before in my life," said Karen Henderson.

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Karen Henderson (credit: CBS)

The Cure marijuana dispensary on Yale Avenue was held up at gunpoint in August 2016.

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(credit: CBS)

The investigation revealed a dangerous flaw in the record system used by Colorado's state courts. The cooperating witness' name was included in court records mistakenly released by a judge in 2016 and passed onto the Blacks by someone else, according to Arapahoe County District Attorney George Brauchler.

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George Brauchler (credit: CBS)

"The affidavit in the case this case was sent accidentally by the court to the bad guys," said Brauchler.

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(credit: CBS)

Terance Black found out about David Henderson's cooperation with police investigating the robbery.

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(credit: CBS)

David Henderson was found shot multiple times, including once in the head, on South Galena Way. He did not survive.

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David Henderson (credit: CBS)

"He didn't have the proper protection and it's a shame that his life got taken from trying to do the right thing," said Karen Henderson.

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(credit: CBS)

Extra security was in court for the sentencing. In the courtroom, Tina Black claimed she was innocent but it was too late.

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Tina Black and Terance Black (credit: Arapahoe County)

"I want people to know they can't get away with this," said Karen Henderson.

There is still one more defendant facing trial in connection with the murder case.

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Vivian Wolfe and Javad Marshall-Fields (credit: CBS)

This is not the first time a witness has been murdered in an Arapahoe County case. Javad Marshall Fields and his fiancée Vivian Woolfe were killed before they were set to testify at a murder trial. Rhonda Fields, Javad's mother, is now a state senator representing Aurora.

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