Lane Garrison, who starred as ‘Tweener’ in Prison Break’s better years, was formally sentenced today to 40 months behind bars.  The actor, who was involved in a fatal car accident back in December 2006, could have seen up to 6 years.  Garrison, 27, had been partying with teenagers right before crashing a Range Rover into a tree.  A 17-year-old male was killed in the incident; two 15-year-old girls were also injured.

Garrison, who did receive credit for time already served, pleaded guilty in May to vehicular manslaughter (without gross negligence) and two other alcohol-related charges.  In addition to his jail sentence, he was ordered to pay nearly $300,000 in restitution to the victims’ families.