Bloodwalker series

Ravenna Hall is a Bloodwalker, a psychic whose medium is blood. But in a society scarred by the deaths of nearly six billion people from a vicious blood-borne disease, having a power which requires her to ingest the blood of dead people damages more than it helps. As a forensic investigator for the Chicago PD, Raven uses her power to streamline the process of crime solving, leaving her in a position of being heavily relied upon by her fellow cops for her usefulness, and feared.

Bloodwalker
(short story)

Ravenna Hall is asked by a desperate mother to find her missing son. Was he targeted because they’re werewolves?