SMITHS GROVE, Ky. – Iowa authorities say they've captured a Kentucky sheriff's deputy accused of killing his ex-girlfriend.

A Kentucky State Police dispatcher says he was notified early Tuesday that Randall Creek was caught at a motel in Waterloo, Iowa. That's about 600 miles from Smiths Grove, Ky., where Debbie Rediess was gunned down Sunday.

Police say the 41-year-old Creek confessed in an e-mail to killing Rediess. Police say he also sent e-mails taunting police and threatening a jailer.

In an e-mail to the Daily News of Bowling Green hours before the killing, Creek said Rediess ended their relationship because he wouldn't set a wedding date. He did not threaten her in that e-mail.

Authorities at the jail where Creek is being held did not know if he had an attorney.