Bed DNA samples
Detective Katherine Corona takes the fluid samples from the deathbed of late Johnathan Shepard and finds that the blood found in the sheets belongs to Mr. Shepard.
There are other fluids, hair and skin flakes that belong to Mr. Shepard, Mrs. Shepard and a third person.
Based on the evidence presented by other detectives, a warrant is issued for Mr. Hatfield to submit to a mouth swab. With his DNA sample, detective Corona found a match. Mr. Hatfield has had sexual intercourse on that bed with Mrs. Shepard.
