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Nearly 11 years after Florida State University law professor Dan Markel was gunned down in his driveway, his former mother-in-law, Donna Sue Adelson, is set to face murder charges on whether she masterminded the killing.

The 75-year-old grandmother is accused of first-degree murder, conspiracy, and solicitation of murder in what prosecutors call a cold-blooded family plot to free her daughter, Wendi Adelson, from a bitter custody battle. She has pleaded not guilty .

Former Palm Beach County State Attorney Dave Aronberg, who was also a friend of Markel, told Fox News Digital the long wait for trial was deliberate.

"The day of reckoning for Donna is here and justice has come slowly, but it is going to arrive," he said. "P

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