MSNBC Dateline September 30, 2019 05:55:00
>> it's gonna be bad for you if you fail the polygraph. >> i don't see any reason why i would fail a polygraph. >> reporter: oh, it would turn out be to be bad, very bad for matt. the bomb turned out to be a fake. >> certainly we're considering all possibilities, whether or not he was coerced. >> could your guys determine if the story was true or not? >> could not. >> there is no corroborating evidence other than his mom. >> no evidence to support matt's story. investigators searched his house and car, but found nothing. what's more, matt did take a polygraph test and failed parts of it.
Source: archive.org