The Pender County Sheriff's Office needs your help in this week's Fugitive Files. Twenty-eight-year-old Nathan Casteen is wanted for assault with a deadly weapon and possession with intent to sell heroin. Thirty-one-year-old Prentice Nixon is wanted for obtaining property by false pretenses. Fifty-seven-year-old Alfred Burton is a registered sex offender wanted for failure to register. The sheriff's office also needs your help finding four Pender County men who owe a total of $200,000 in unpaid child support. Rodney Echols is wanted for owing more than $3,000. Ivey Wilson Jr. owes more than $5,000. James Marshall is wanted for owing more than $24,000 in unpaid child support. Thomas Powell Jr. is wanted for owing more than $169,000. If you have any information call the Pender County Sheriff's Office at 259-1515.