Willaims Trial 

(WABI) – 18-year-old Andrew Williams admitted he’s guilty of felony robbery Monday in Somerset County district court.

Back in December, the Snack Shack in Skowhegan was held up by 17-year-old Alex Stetkis, and 16-year-old Dillon Perkins.

Williams was working at the restaurant at the time, and was involved in planning the robbery.

He was ordered to remain at the youth center in Charleston until his 21st birthday. Although prosecutors say Williams could be released on good behavior as early as November.

The two other teens involved in the robbery have already admitted their guilt in court.

They’ve also been sentenced to the youth center in charleston.