MSNBC Dateline April 18, 2021 06:55:00
Wrinkles. the blood on marks clothes and the knife in the kitchen butcher block. >> remember this is a retrial now. they felt this time that they needed to show a possibility of the knife. they never said this was the knife. they're just showing this knife could've done it. >> in fact, said powell, the new evidence was no more persuasive than the old. no blood, that animal fat found on the knife, how about somebody use the knife to cut a steak and then washed? it >> could you wipe all the dna off a knife you put -- >> good question, i've learned now after this trial that blood will never leave...