DUI crash proves fatal, but defendant evades strict sentencing.

Twenty-year-old former University of Miami student, Ivanna Villanueva, who killed a woman in a devastating DUI crash two years ago has evaded the harshest sentencing.

(Related: Superdrunk Driving)

During a hearing Wednesday, Villanueva was lead away in handcuffs to begin three years in a youthful offender facility as part of a deal worked out with prosecutors — a deal that was anything but certain.

Villanueva turned herself in Tuesday to start serving her time for the fatal DUI, at the facility. There, she was required to take a drug test, but was unable to complete the first test. After taking the second test, she produced positive results for amphetamines.

(Related: DUI First Offense)

“It would’ve been a violation had they been illegal drugs but they were not. These were prescribed medications under healthcare and under doctors orders,” said Villanueva’s attorney.

The judge was presented with a full analysis of the test result along with a note from Villanueva’s doctor which stated that he prescribed her the medication for ADHD. In the event Villanueva had failed to pass the drug test, she would have been facing 15 years in jail.

As an additional part of her deal, Villanueva will serve 15 years of probation and perform a thousand hours of community service for the fatal 2011 accident which took the life of Eyder Ayala. Furthermore, she will be required to make a donation to Mothers Against Drunk Driving on the anniversary of Ayala’s death.

The accident occurred at the intersection of LeJeune Road and Majorca Avenue. Villanueva was speeding when she slammed into the rear Ayala’s car.   The impact from the crash was so severe that Ayala’s trunk was compact into the front seat.  Ayala, a mother to five and grandmother to seven, died at the scene.