FBI Special Agent in Charge David J. Johnson of the Salt Lake City Division and Chief of Police Frank DiFonzo of the Sidney, Montana Police Department announce a development in the ongoing investigation into the disappearance of Sherry Arnold. On March 20, 2012, special agents assigned to the FBI Evidence Response Team began efforts to recover human remains in the vicinity of Williston, North Dakota. During this operation, the FBI received support and assistance from several Montana and North Dakota law enforcement agencies to include the Sidney Police Department, Richland County Sheriff’s Office, Williams County Sheriff’s Office, Williston Police Department, and the North Dakota Highway Patrol. By the early morning hours of March 21, 2012, special agents had recovered the physical remains of a female. While a positive identification has not been made at this time, it is believed the remains are those of Sherry Arnold of Sidney, Montana/FBI, Salt Lake Division, news release. More here.