Sheriff's Office: 2nd arrest made in murder of Tara Grinstead

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Two days later, her co-workers at Irwin County high School, where she taught, called 911 when she didn't show up for work. Police said when they got to Grinstead's home to investigate, they found no signs of a struggle and her purse, keys and cell phone were still there.

She was 30-years-old at the time of her disappearance.

A grand jury is expected to meet on April 12 to see if the murder case against Duke will move forward. He remains in jail without bond.