natrona county sheriff's office

The search for an autistic Natrona County teen missing since Sunday afternoon has entered his fourth day.

Several local, statewide and federal agencies are assisting with the search.

Peterson is 5'9" and weighs 120 lbs. He was last seen wearing a red hooded sweatshirt and pajama pants.

Beginning at noon Sunday, a task force consisting of 10 city, county, state and federal agencies has been taking part in the search.

Joey was last seen wearing pajamas, possibly without shoes, in the area of Goose Creek Circle and Hat Six road in Casper.

Deputies found the driver roughly eight miles southwest of Black Mountain, the report says.

A sentencing date has not yet been scheduled.

The affidavit alleges Dawson told deputies that he came upon the stop sign too fast and may have slid on a cattle guard before the crash.

If Simakov violates the conditions of his probation, Natrona County District Court Judge Kerri M. Johnson could impose the suspended prison sentence.

Defense attorney Richard Jamieson called the circumstances of the case unique.