MSNBC Dateline October 21, 2019 06:06:00
>> reporter: detectives reached into their tool kit. they'd just taken a dna swab from dan. they didn't have results but decided to bluff. how did your dna get on her? >> because i was right over the body. >> what's that? >> because i was right over the body. >> okay. how how did your dna get on her? >> that i don't know. >> dna doesn't just fall off. >> i don't know. >> okay. >> i didn't touch her. i didn't do anything. >> reporter: and then, something out of the blue. >> what did you see? >> saw two gun shots in her head. and i saw her pants like ripped and cut. i saw like [ bleep ] you writ...