TODAY | October 29, 2013
>>> we have new developments in the search for four escaped prisoners in oklahoma. two of the men are still at large. kerry sanders has more on that.
>> reporter: two are still on the loose but two are captured 20 miles from here. they're back in the jail this morning where there's new questions of how a jail that's only a year old and cost more than $2 million to build. back in custody and back in jail thanks to investigators with the da's office who saw the men flipping into this convenience store where they bought $6 of junk food .
>> they paid for their stuff and they walked outside and the cops, about ten of them got them.
>> reporter: from the outside, the caddo county detention center where the inmates escaped looks like a fortress. no windows, razor wire, cameras. the four escaped through a trapped door above the shower and through a concrete wall and into freedom. embarrassing because the $8 million jail here is only a year old.
>> they have a lot of explaining to do. new facility, state of the art . someone goofed up.
>> reporter: this is one of the old jails. they don't build them like this anymore for humane reasons but in old jail cells like this, there was only one way in and one way out. the sheriff here says contractors sealed every trap door but he says that may not be enough.
>> no, i can't say that it won't happen again. there's lots of ways, you know, that people escape jails. i can't say it won't happen again. we hope it don't happen again.
>> reporter: i misspoke. it wasn't $2 million to build the jail. it's $8 million to build the jail and that's why the county commissioners here started an inquiry for the contractor and architect to find out what went wrong. the builder says they have started a top to bottom review. the architect, aip, did not return calls from nbc news, matt.
>>> all right. kerry sanders in oklahoma this morning. thanks as always.