WEST MIFFLIN, Pa. (AP) — UPDATE: Authorities say a woman suspected of urinating on potatoes at a Walmart in Allegheny County has turned herself in. West Mifflin police say 20-year-old Grace Brown is facing multiple charges including criminal mischief, open lewdness and public drunkenness. Brown turned herself in Tuesday after learning that authorities were looking for her. Authorities had posted surveillance photos of the incident on their Twitter account.