BROWN COUNTY, Wis. (WBAY) - Feb. 8 update: The Brown County Sheriff's Office says one man and one woman -- the second and third photos seen above -- have been positively identified. They became persons of interest after using a gift card purchased with stolen credit cards. They have been interviewed by law enforcement.
The Brown County Sheriff's Office is asking for help identifying four people suspected in a series of credit card thefts from local hospitals and clinics.
They're suspected in similar credit card thefts and fraud cases across the state.
The sheriff's office first became aware of them in May 2018, when a wallet was stolen from a medical facility employee's purse that was left unattended. Very soon after, the stolen credit cards were used to buy high-end electronics and gift cards and local stores.
At about the same time, a similar theft was reported to the Green Bay Police Department by a hospital employee. Those stolen cards were used at a Target store, making similar purchases.
The ill-gotten gift cards were used the next day in Milwaukee, including buying a TV at a Mayfair Best Buy.
Then, last month, there was another theft. This time the victim was an employee of a medical facility in Allouez. The cards were used to buy high-end electronics and gift cards at a local Target store.
Based on surveillance photos from the medical facilities and retailers, investigators believe all these cases are related -- and they've learned of similar fraud cases throughout the state. Investigators believe the perpetrators have connections to the Milwaukee area, based on the usage of cards there.