SHEBOYGAN, Wis. -- Officers in Sheboygan said a man has stolen hundreds of thousands of dollars at a time from a landlord in the area over the course of several years and then used some of it to buy underwear.

Dina Matlin is a long-time Sheboygan landlord, and while her office isn't fancy, investigators said it was worth millions.

Sheboygan County District Attorney Joe DeCecco said that for decades, Matlin had been stashing cash in the income tax service building.

"She had been taking rental payments, putting them in envelopes and in boxes in her office for a long time," DeCecco said.

DeCecco said there were 14 boxes full of money. Some of the cash was 50 years old.

Matthew Harju worked for Matlin and police said he used his keys to get the cash. DeCecco said that for years, Harju and possible accomplices raided the office, stealing more than a million dollars.

"This person and perhaps other people involved with him would use it as their personal bank. They'd take money whenever they needed it, and they took a lot of money," DeCecco said.

Investigators said Harju spent the money on a variety of things, including vintage cars and an endless supply of underwear.

"He never had to use underwear twice. He would just buy new underwear and never wash or change them," DeCecco said.

Harju is currently serving time for breaking into the office earlier this year.

Investigators said they believe that at least two other people may have been involved in the thefts, but said they won't be charged or arrested because the case is too hard to prove.