Xenopath by Eric Brown (Bengal Station 2)

It’s two years after Necropath and Jeff has married Sakura and they await their first child when Jeff gets an offer he can’t refuse. He is back as a telepathic detective and soon he is investigating murders connected with Malloy. The plot thickens  and his telepathic abilities and insight in the workings of Bengali Station serve him well when he has to find the urchin connected to the case.

The finale is a showdown on the planet Malloy where he have to stop a genocide.