Franny is a Homicide Analyst at Robbery-Homicide but has at times helped Priority Homicide with some of it's cases.
She first appears helping Sergeant David Gabriel in finding out if their were an murders with a similar MO to a Russian prostitute stabbing Priority Homicide is working. She comes up with one match and Gabriel leaves to tell Deputy Chief Johnson.
Brenda later visits her herself in looking into the triple murder of three known East-Side Catorces and looking for head shot similar to one used in the triple murder. She manages to find two other similar murders with one shot to the head each.