Kellerman, Jonathan - Twisted

A year has passed since the Cold Heart murders and Detective Petra
Connor is, once again, working Hollywood Homicide solo. She has just
solved three gang-related killings and is feeling pretty good about
herself - about life in general - when Isaac Gomez waltzes into her
office and tells her he's found something she might want to take a look
at. A twenty-two-year-old prodigy researching a Ph.D. in sociology,
Isaac has gained access to LAPD case files. But while combing the files,
the brilliant young man has come upon a series of apparently unrelated