INDIANAPOLIS (AP) _ A federal judge has dismissed a lawsuit by three girls expelled from a northwestern Indiana school for Facebook posts about killing classmates after both sides reached a settlement.
 
  American Civil Liberties Union of Indiana attorney Gavin Rose said Tuesday the settlement was confidential and he could not discuss the details. He did say the girls have returned to Griffith Public Schools for their freshman year of high school after being expelled for the second half of their eighth grade year.
 
  The attorney who represented the school district did not immediately return a phone call Tuesday seeking comment.
 
  Documents show the lawsuit filed in federal court in Hammond was dismissed Monday.
 
  School officials said the girls’ posts showed a threat, while the ACLU said the comments were jokes made off-campus.