BOONTON, N.J. -- A former used-car dealer was arrested for a second time after two customers accused him of bad business practices.

Alberto Martinez, 57, allegedly pocketed the money his customers at Boonton Auto Sales would pay for having their vehicles financed, instead of paying the lenders.

Martinez was also said to purchase vehicles from rental companies without paying for them. He would sell those cars, keep the money and withold the titles of the sold vehicles. He also sold extended warranties to his customers without filing the warranties, again keeping the money.

The most recent victims told police they had gone to Martinez to re-finance their vehicles. Martinez set up new accounts at a new bank for them but never paid off the original bank. The victims eventually received notes from their original lenders telling them they were behind in payments.

Martinez posted $15,000 in bail and was released after his first arrest. He was arrested again on May 31 when the two victims came forward after seeing news reports of his previous arrest. He is now being held at Morris County Jail on $25,000 bail.