A 13-year-old will be in state custody for two years for sexually molesting a seven-year-old girl in a Brighton library.
A juvenile court referee also ordered the Brighton teen to undergo sex offender therapy.
Testimony revealed the boy posed as a library volunteer to gain the trust of the girl and her mother. He then lured her into the bathroom and assaulted her until another someone entered the room. He pleaded guilty last month.
The teenager apologized to the girl in court during yesterday's sentencing.
The girl sat quietly between her parents.