The Laramie County Sheriff's Office is asking for the public's help in locating 40-year-old Donald Crerar.

"He is wanted on a felony warrant with nationwide extradition for third-degree sexual abuse of a minor," said Lt. Don Hollingshead.

Hollingshead says the Cheyenne Police Department began investigating the case late last year after the victim's father reported the alleged abuse.

"It'd gone on for a period of years," said Hollingshead. "The victim in all this is now an adult and came forward and disclosed this information to her father."

Crerar is a 5-foot-9, white man weighing 225 pounds, with brown hair and brown eyes.

Anyone with information on Crerar's whereabouts is asked to call the Laramie County Combined Communications Center at (307) 637-6524 or Crime Stoppers Silent Witness at (307) 638-TIPS.

Laramie County Sheriff's Department