YALE (WKZO) -- 18-year-old Tia Skinner is guilty in the stabbing death of her father and attempted stabbing death of her mother.  A jury ruled that Skinner is guilty of conspiracy to commit first-degree murder, attempted murder and first-degree murder.

The case stems from the November attacks on Skinner's parents.  Prosecutors said that Tia Skinner arranged to have two young men attack her parents while she sat in the basement of the family home.  Both of those men have already been convicted in the cast.

Tia Skinner's sentencing is scheduled for September 16th.