Muller, Marcia. Sharon McCone mysteries.

A knock on the door in the middle of the night. It can only be bad news, and it is: Sharon's father Elwood has been the victim of a vicious, racially-motivated attack. A nationally recognized Shoshone Indian artist, he'd been visiting Sharon for the holidays, browsing for gifts in San Francisco's exclusive Marina district when he was set upon by a mob of angry young men. Now, Elwood lies in a coma, hovering between life and death. With little progress on the investigation from the overworked, short-handed police, Sharon resolves to track down Elwood's attackers and bring them to justice herself. But when Sharon starts receiving hate-filled, racist threats, it's clear that Elwood's attackers aren't planning to come quietly