Detectives with the Palm Beach County Sheriff's Office arrested Marvin Conley on Thursday.
Conley is accused of targeting elderly people at ATMs across southern Palm Beach County.
According to detectives, Conley would distract people at the ATM and in some cases they would forget to log off from their bank account.
When that happened, detectives say, Conley would withdraw hundreds of dollars in cash from their accounts.
According to PBSO, he's stolen at least $2,000 worth of cash from his victims.
While detectives have identified at least 18 victims, there still may be more.
PBSO urges you to come forward with information if you think you may be a victim.
The sheriff's office is working with other local agencies in this investigation.
LIVE on #Periscope: #BUSTED a thief who took money from 18 victims ATM Machines https://t.co/EnV4g2Zzk2
— PBSO (@PBCountySheriff) May 12, 2016