At approximately 09:45, Hailey walks through the door twice from two different angles.
The explanation for Darlene's injuries vary from self inflicted with a barrette to knife wounds from an attack.
The team goes to bring Santiago in. When Santiago runs in through door fleeing the lady gets pushed against the door and drops the bag of flowers. Then Jay & Upton run in right after him, the lady is still leaning against the door, but she is still holding the bag of flowers.
When discussing the initial crime scene, Hailey says that offender went for guy's late wife's jewelry, and next minute Voight asks about girls' mother whereabouts.