A teenager was sentenced to 18 years in prison for her role in the death of her half-sister, who police say was beaten during a re-enactment of the "Mortal Kombat" video game.

Heather Trujillo pleaded guilty in May to child abuse-negligently causing the death of 7-year-old Zoe Garcia. Trujillo's prison sentence may be suspended if she successfully completes six years in a Youthful Offender System program.

Trujillo and 17-year-old Lamar Roberts were baby-sitting Zoe last December. Authorities say she died from head injuries after she was hit, kicked and slammed to the floor as the teens reportedly re-enacted the video game.

The 17-year-old Trujillo has agreed to testify against Roberts, who is charged with child abuse causing death. Roberts' preliminary hearing is July 10.

(Copyright 2008 by The Associated Press. All Rights Reserved.)