Slag Like Me — Barry B. Longyear

Detective Matthew Sikes and his Newcomer partner George Francisco must track down a missing human journalist, named Micky Cass, who has gone undercover as a Newcomer to expose racism and discrimination against the Tenctonese. From the beginning, the journalist's articles about his experiences ignited fierce controversy. When Micky Cass disappears, the controversy explodes and violence wracks the city:

It is now up to Sikes ant o to solve a case that has the entire city caught in a grip of hate. Finally, as the city burns, Matt Sikes must go undercover as a Newcomer and place himself at the center of the worst violence Los Angeles has ever known..