This has got to be a top ten contender

In the Criminal Mastermind department.

An 18 year old woman in Tennessee pleaded guilty to attempted murder. She tried to hire a hit man to kill four men. The men were to be killed, along with any possible witnesses so the young woman could steal what she thought was cocaine from the men. She told the hit man she needed the money from the robbery to attend modeling school.

The "hit man" turned out to be an undercover police officer.

Even worse than that is the fact that the white, powdery substance she thought was cocaine was actually queso fresco, a Mexican cheese.....

She was sentenced to 15 years in prison.