The First 48 - Season 7 Episode 9 -

In Dallas, Detectives Scott Sayers and Ken Penrod are investigating a home invasion that left a young man dead. Is their suspect just a young suburban mom, or a criminal mastermind? And in Cincinnati, a brutal stabbing ends the life of a hard-working grandfather. After interviewing a series of family members, Det. Jenny Luke finds out that her suspect may be closer than she initially thought.