Scientist who searched for blood testifies at trial of Samantha Woll's alleged Detroit killer

[@ICallItAsItIs]

This scientist looks like she just got out of high school.

[@mortalclown3812]

Good to pay attention to what matters most.

[@Nahtassja]

One blood stain on backpack visible by naked eye.

[@DavidMotherland]

21:47 jacket 30:52 backpack