The family of Autumn Pasquale says it won't comment on the apparent Facebook exchange she had with one of the brothers accused of killing her.

Autumn Pasquale (Clayton Police)

Paul Spadofora, a spokesman for the family of Autumn Pasquale's, says the family doesn't want to talk about any evidence for fear of jeopardizing the case.

A screenshot of an Oct. 17 Facebook exchange that appears to be between Autumn and Justin Robinson shows her commenting on a picture of a bike he posted, calling it "sexy." In the exchange, he invites her to his home to see it.

The 12-year-old girl disappeared Oct. 20. Her body was found two days later near the boy's home.

The 15-year-old Justin and his 17-year-old brother Dante Robinson are charged with murder.

(Copyright 2012 by The Associated Press. All Rights Reserved.)