(Willmar MN-) A man from Cresco in northeastern Iowa has admitted to cyberstalking a woman in Willmar and harassing others in southwest Minnesota. Kandiyohi County Sheriff Eric Holien says the victim was a resident of Willmar but some of the violations also occurred in Pipestone, Renville and Meeker Counties. Fifty-seven-year-old Michael Shawn McGuire of Cresco admitted that he used Facebook and the mail to harass and intimidate the woman and caused substantial emotional distress to her. McGuire put up numerous yard signs where the victim lived that were sexually explicit and contained her name, telephone number, address, and email address. During this same time period, various friends, family members, and associates of the victim received sexually explicit mailings with semi-nude photos of her -- and semi-nude photos were sent to some of the victim’s contacts through Facebook and put on various fake dating profiles associated with her. McGuire could face up to 20 years in prison when he is sentenced.