DALLAS — A man sent to prison more than 15 years ago has been freed after DNA testing concluded he was innocent.

Patrick Waller walked out of court a free man Thursday. He has been behind bars since late 1992 on convictions for aggravated robbery and aggravated kidnapping stemming from the abduction of a Dallas couple.

But DNA testing conducted late last year proved Waller was innocent.

Prosecutors say the DNA profile matched another man, who is free on parole.

Waller is the 19th man in Dallas County since 2001 shown by DNA evidence to be innocent of the crime for which he was convicted. The Innocence Project in New York says that's a national high.