The Cases of the Murdered Poet & Mall Robberies

A series of robberies from different malls around the Suffolk County Area of New York has been occurring for the past few months plus, an up-and-coming poet involved with this mystery, has been killed, with the suspects being 2 recently reformed criminals. Can an unlikely trio of 2 women and a pre-teen girl, and her ferret, solve both cases, and clear the 2 suspects' names?